Vet Tech to DVM- How RVTs Should Approach the Prerequisites-the bridge guide for credentialed veterinary technicians pursuing the DVM — what counts from your AS degree, what doesn’t, and the realistic 18–24 month roadmap from RVT to vet school matriculation

Of all the applicant profiles US vet schools see, credentialed veterinary technicians arguably have the strongest non-academic foundation. The 1,500-3,000 average veterinary experience hours that admissions committees look for at competitive programs? You probably hit that within your first year as a working RVT — and you’re approaching 10,000+ hours after five years in practice. The supervising-veterinarian relationships that turn into letters of recommendation? You see those veterinarians every shift. The demonstrated commitment to the field that admissions committees scrutinize from career changers? You’ve already credentialed for it, passed the VTNE, and built a career around it.

The rate-limiter on your DVM application isn’t experience, isn’t motivation, isn’t demonstrated science aptitude. It’s a specific list of prerequisite courses that your AVMA CVTEA-accredited associate degree didn’t include — because it wasn’t designed to. Vet tech programs build technicians, not veterinarians, and the science foundation differs accordingly. The good news: that prerequisite gap is well-defined, completely closable through online or community college coursework, and substantially smaller than the gap non-science majors face. The realistic bridge timeline for most working RVTs is 18-24 months.

What you already have that other applicants don’tVeterinary experience hours: Texas Tech’s average admitted student profile shows 2,073 hours of veterinary-supervised experience. Working RVTs accumulate this volume in the first year of practice. By year three, you’ve doubled that average. By year five, you’ve passed every applicant profile published by US vet schools. Letters of recommendation: Most vet schools require at least one letter from a practicing veterinarian. You work alongside multiple veterinarians every shift — the relationships exist; you just need to formalize the request 6+ months before submission. Demonstrated career commitment: Admissions committees scrutinize career-changer narratives carefully. You’ve already proven your commitment to veterinary medicine by completing CVTEA-accredited training, passing the VTNE, and building your career. The narrative is built into your resume. From Virginia Tech’s DVM admissions page: “Work Experience in the biological or physical sciences, clinical investigation or working as a licensed healthcare provider (e.g. nurse, physician, licensed veterinary technician)” — RVT work is formally recognized by vet schools as qualifying science/healthcare work experience.

What this article covers

  • What’s already on your RVT transcript (more than you think — and less than you might assume)
  • What the prerequisite gap actually looks like for credentialed vet techs
  • Why vet tech A&P typically doesn’t satisfy DVM physiology — and what to do about it
  • The bachelor’s degree requirement (and how to close it efficiently)
  • The 18-24 month bridge roadmap
  • Three RVT profiles and the specific path that fits each

What’s already on your transcript

AVMA CVTEA-accredited veterinary technology programs follow a defined curriculum structure. The CVTEA Standards specify the content areas every accredited program must cover. That predictability is useful — it means most RVT transcripts share the same general structure regardless of which CVTEA-accredited program you attended. The table below shows what’s typically present in an AS-level vet tech transcript and how each piece maps to DVM program prerequisite categories.

Typical RVT Curriculum CourseCounts toward DVM prerequisites?Notes
Veterinary Anatomy & Physiology I + IIUsually NOSpecies-focused, applied A&P — not the science-major sequence DVM programs require
Veterinary MicrobiologySometimes (case-by-case)Clinical-applied microbiology may not satisfy science-major Microbiology — verify with target schools
Veterinary PharmacologyCounts as electiveNot a standard DVM prerequisite — strengthens application as elective
Hematology / Parasitology / CytologyCounts as electivesNot DVM prerequisites — strong electives demonstrating clinical aptitude
Clinical Nursing coursesCounts as electivesReinforces clinical experience claim — not a prerequisite per se
Medical TerminologySatisfies some schoolsRequired by some DVM programs — check target list
English Composition (gen ed)YES — satisfies writing requirementMost CVTEA programs require this for AS completion
College Algebra / Math (gen ed)Satisfies some schools’ math requirementSome DVM programs accept algebra; others require calculus or statistics
General Biology (some AS programs)YES if science-major sequenceVerify with transcript — some AS programs include BIO 101/102, others don’t
General Chemistry (some AS programs)YES if science-major sequenceLess commonly included than biology — verify your specific program

The pattern: roughly 60-70% of your AS-level vet tech credits are veterinary technology specialty courses (anatomy, microbiology, pharmacology, clinical nursing, externships). These are valuable on your VMCAS application — they demonstrate clinical aptitude and accelerated coursework completion — but most don’t satisfy the foundational science prerequisites that DVM programs require. The remaining 30-40% of your AS credits are general education courses (English, math, sometimes biology or chemistry, occasionally humanities), and these may or may not satisfy specific DVM prerequisites depending on the courses your specific program required.

The prerequisite gap for credentialed vet techs

Most US DVM programs require approximately 8-10 science prerequisite categories beyond general education. For a credentialed RVT with an AS degree from a CVTEA-accredited program, the prerequisite gap typically consists of the following courses. Your specific gap depends on which gen ed courses your AS program included — some RVTs come into the bridge process with general biology and general chemistry already completed (cutting the gap by 4-6 courses); others come in with only English composition and math (facing the full gap).

DVM PrerequisiteCreditsMost RVTs Need It?PrereqCourses option
General Biology I + II with Lab8 sem crYes (unless in AS gen ed)BIO 135 + BIO 140 with Lab
General Chemistry I + II with Lab8 sem crYes (most RVTs)CHEM 151 + CHEM 152 with Lab
Organic Chemistry I (+ II)4-8 sem crYes (all RVTs)CHEM 251 (+ CHEM 252)
Biochemistry3 sem crYes (all RVTs)CHEM 330 Biochemistry I (300-level)
Microbiology with Lab3-4 sem crSometimes — verify with each schoolBIO 210 Microbiology with Lab
Genetics3 sem crYes (all RVTs)BIO 282 General Genetics
Physics I + II with Lab8 sem crYes (most RVTs)External online physics provider
Statistics3 sem crYes if not in AS gen edMATH 220 Elementary Statistics

Total prerequisite credits for most RVTs: approximately 35-45 semester credits of science coursework. This is substantial — but it’s substantially less than the 40-50 credits non-science career changers face, because RVTs typically come in with several gen ed courses (English composition, math) already completed and don’t need additional humanities or social sciences.

Why vet tech A&P typically doesn’t satisfy DVM physiology

This is the single most common point of confusion for RVTs pursuing the DVM bridge. You completed Veterinary Anatomy & Physiology I and II during your AS program. You probably earned strong grades. You apply that knowledge daily in clinical practice. So why doesn’t this course count toward DVM physiology requirements at most schools?

The answer is in the course design philosophy. Vet tech A&P is structured to prepare technicians for clinical practice — it emphasizes practical anatomy, species-specific differences (canine, feline, equine, bovine), and applied physiology relevant to nursing care. Vet tech A&P typically does not include the deep biochemical and molecular foundations that science-major-level physiology courses cover: cellular respiration at the mitochondrial level, signal transduction cascades, action potential generation at ion channel resolution, hormonal feedback loops at the molecular level.

DVM programs require physiology that includes this depth because the first-year DVM curriculum builds directly on it. Veterinary physiology in year one of vet school is taught at a level that assumes science-major-level prerequisites — if your physiology background is the vet tech version, the gap shows up immediately in DVM coursework.

How to handle the A&P/physiology requirement

Three options exist for satisfying DVM physiology when your only physiology background is vet tech A&P:

  • Take a separate upper-division physiology course at a four-year institution. This is the path UC Davis specifically requires (biochemistry, genetics, AND physiology must all be at upper-division at four-year institutions). Cornell, K-State, and many other programs accept four-year institution physiology even if not strictly upper-division.
  • Take Human Anatomy & Physiology I and II (BIO 270 + BIO 275) through PrereqCourses.com. This satisfies some DVM programs’ A&P requirements (verify with each target school), particularly programs that accept human A&P sequences when no upper-division physiology is required.
  • Submit a course substitution request for your vet tech A&P to be evaluated individually. Some programs (Kansas State, several others) will approve vet tech A&P on a case-by-case basis when the syllabus shows sufficient depth and coverage. This requires submitting the original course syllabus and waiting for written approval.

Recommendation: Don’t assume vet tech A&P will count. Verify with every program on your target list before relying on it. If your target list includes UC Davis, you’ll need to take separate upper-division physiology regardless of what your vet tech A&P covered.

The bachelor’s degree question

Your CVTEA-accredited program awarded you an Associate of Applied Science (AAS) or Associate of Science (AS) degree. Most US DVM programs require a bachelor’s degree by matriculation. Some don’t — Cornell, Iowa State, and several others accept applicants who have completed at least 60 credit hours including all prerequisites. But the bachelor’s degree requirement is more common than not, and it shapes how you should think about the bridge timeline.

Option 1: Bachelor’s completion programs that accept your AS credits

Many four-year universities offer Bachelor of Science completion programs specifically designed for credentialed AS holders. These programs typically accept 60-72 of your AS credits and require you to complete 48-60 additional upper-division credits to award the BS. The advantage: your existing AS credits are recognized, and the additional coursework can be designed around DVM prerequisite completion.

Bachelor’s completion options vary in their flexibility. Online-friendly programs (often at state universities with strong online undergraduate offerings) let you complete the bachelor’s alongside continued RVT employment over 18-24 months. The combination of bachelor’s-completion-program coursework and PrereqCourses.com courses (taken as transfer credit to the bachelor’s program) is often the most efficient structural path: bachelor’s degree from a regionally accredited four-year university + completed DVM prerequisites + completed AS in veterinary technology = strong applicant profile.

Option 2: DVM programs that don’t require a bachelor’s degree

If you want to avoid the bachelor’s-completion step entirely, focus your DVM application list on programs that accept 60+ credit hours including prerequisites without requiring a completed bachelor’s. Cornell University accepts applicants with 60 credits and all prerequisites complete; Iowa State accepts applicants with 60 credits; several other programs have similar policies. This is the fastest path to DVM matriculation if you’re willing to limit your target list. The trade-off: you reduce the number of programs you can apply to, which affects overall acceptance odds.

Option 3: Apply with the AS only to schools that explicitly accept it

Per Virginia Tech’s DVM admissions guidance: “the college requires applicants to have two years of undergrad academics.” This is a low floor — applicants with 60+ credits of academic coursework (which includes most RVT AS programs) meet the minimum threshold. The practical reality is that most admitted applicants present substantially more, but the floor exists for applicants whose specific situation requires applying with just the AS and prerequisites.

Which bachelor’s strategy fits which RVT?Recent RVT graduates (1-3 years out): Bachelor’s completion program is typically the best fit. You have the energy and flexibility for 18-24 months of additional coursework, and the bachelor’s degree opens the broadest set of DVM program options. Mid-career RVTs (5-10 years out): Either bachelor’s completion OR targeting DVM programs without bachelor’s requirements. The decision depends on which DVM programs are on your target list and how time-sensitive your transition is. Long-career RVTs (10+ years out): Apply to DVM programs that explicitly accept 60+ credits with completed prerequisites. Your decade-plus of clinical experience compensates for the absence of a completed bachelor’s at most programs.

The 18-24 month bridge roadmap

The realistic bridge timeline for most working RVTs is 18-24 months from first prerequisite enrollment to VMCAS submission. The timeline assumes continued RVT employment alongside coursework (most working RVTs maintain 30-40 hour work weeks throughout the bridge), and assumes 15-20 hours per week of focused coursework. Three phases organize the work.

Phase 1 (Months 1–6): Foundations and gap audit

Start with the courses that have no prerequisite chain and the fastest completion times. Statistics (MATH 220) if you don’t already have it — three to six weeks of focused work. General Biology I with Lab (BIO 135) and General Chemistry I (CHEM 151) begin the longer prerequisite chains.

In parallel, complete the prerequisite gap audit for every program on your target list. Pull each program’s prerequisite specification from their admissions page. Map your AS transcript course-by-course against their requirements. Identify which AS courses they’ll likely accept (typically English composition, sometimes algebra/math, occasionally A&P, occasionally microbiology). Identify which they won’t (most veterinary technology specialty courses, most species-specific A&P). Build a gap document that lists every prerequisite you still need at every target school. This document drives the rest of your bridge plan.

Phase 2 (Months 6–14): Upper-division sciences

This is the heaviest content phase. Complete General Chemistry II (CHEM 152) and General Biology II (BIO 140) to finish the foundation sequences. Begin Organic Chemistry I (CHEM 251) as soon as general chemistry is complete — organic chemistry is the bottleneck of the science sequence and should not be delayed. In parallel, complete Microbiology with Lab (BIO 210) if your target schools won’t accept your vet tech microbiology, and General Genetics (BIO 282).

Plan to dedicate 20-25 hours per week to coursework during Phase 2. This is academically demanding alongside RVT employment — many RVTs find this is the phase where they reduce work hours from full-time to 30-32 hours per week, or shift to a less demanding clinical position to free up study time. Tuition reimbursement programs at hospital systems often cover prerequisite coursework when framed as career development — verify with your hospital’s HR or benefits team before assuming the cost is entirely out-of-pocket.

Phase 3 (Months 14–24): Final prerequisites and VMCAS

Complete Biochemistry I (CHEM 330) (which requires organic chemistry as prerequisite), any remaining physics requirements through an external online physics provider, and any school-specific prerequisites flagged in your Phase 1 gap audit. Begin VMCAS application preparation 6-8 months before submission — letters of recommendation requests, personal statement drafting, experience hour documentation, transcript ordering. VMCAS opens in mid-January with submission running through mid-September. Most working RVTs target submission in the August window, allowing 4-6 weeks of buffer before the deadline.

Why the RVT bridge timeline is faster than the non-science major timelineNon-science majors face an 18-24 month prerequisite phase PLUS 1,500-3,000 hours of veterinary experience accumulation (which often requires leaving their previous career or working a second job). RVTs face the same 18-24 month prerequisite phase WITHOUT the experience accumulation timeline — you’re accumulating experience hours every shift you work as an RVT during the bridge. By VMCAS submission, you’ve added another 2,000-4,000 hours to your already substantial total. This is the structural advantage RVTs have over career-changer applicants from outside veterinary medicine. The 18-24 month bridge produces a stronger applicant than a 24-30 month career-changer plan from a non-veterinary background.

Three RVT profiles and the specific path that fits each

Profile 1: Recent RVT graduate (1-3 years in practice)

You completed your AS within the last 3 years, passed the VTNE, and have been working as a credentialed technician in a general practice or specialty practice setting. Your veterinary experience hours are in the 2,000-6,000 range. Your AS transcript includes the standard CVTEA curriculum plus general education (English composition, math, possibly basic biology). Your undergraduate GPA from the AS is on the more recent transcript.

Your path: Bachelor’s completion program enrollment + 18-24 month prerequisite phase + VMCAS submission. The bachelor’s completion option gives you the strongest applicant profile because it satisfies bachelor’s degree requirements at every US vet school. Total timeline from first prerequisite enrollment to DVM matriculation: typically 30-36 months including the bachelor’s completion year and one application cycle. Expected outcomes: strong competitive applicant profile, multiple US program acceptance options, no Caribbean fallback needed.

Profile 2: Mid-career RVT (5-10 years in practice)

You completed your AS 5-10 years ago, have been working continuously as an RVT, and have accumulated substantial experience hours (often 10,000+). You may have specialty certifications (VTS in emergency, internal medicine, dentistry, anesthesia, etc.). Your supervising veterinarian relationships are deep and your letters of recommendation pool is strong. The question for you isn’t whether you have the experience — it’s whether you have the academic foundation.

Your path: Two options depending on time tolerance. Option A — Bachelor’s completion program + prerequisite phase + VMCAS, totaling 24-30 months and opening every US program for application. Option B — Skip bachelor’s completion, focus prerequisite plan on programs accepting 60+ credits without bachelor’s (Cornell, Iowa State, several others), totaling 18-24 months and limiting your application list to those programs. Most mid-career RVTs choose Option A — the bachelor’s degree future-proofs the application and often costs less than the lost-application-cycle math of a narrower target list.

Profile 3: Long-career RVT (10+ years in practice)

You completed your AS more than 10 years ago. Your veterinary experience is exceptional — typically 15,000+ hours across multiple practice settings. You may have managed clinical teams, mentored junior technicians, contributed to teaching at your CVTEA program. Your career narrative is uniquely compelling, and admissions committees recognize the depth of practice experience you bring. Your challenge is academic — old transcripts, possibly forgotten prerequisite content, and the question of whether to rebuild academic foundations or apply with what you have.

Your path: Target DVM programs that explicitly value extensive clinical experience and accept 60+ credits without a completed bachelor’s. Texas Tech (which selects specifically for rural/regional veterinary medicine experience), Iowa State, Cornell, and several others fall into this category. Your prerequisite phase focuses on closing specific gaps rather than rebuilding from scratch — typically 12-18 months of targeted coursework. Acceptance odds at competitive US programs may be lower than for Profile 1 RVTs, but Caribbean programs (Ross University, St. George’s University) are strong additional options where extensive RVT experience is particularly valued.

Letters of recommendation: the RVT advantage

Letters of recommendation are one of the areas where RVTs have a clear structural advantage over other applicant profiles. Most US DVM programs require at least one letter from a practicing veterinarian; many require 2-3 total letters. The letter requirement that career changers struggle with — finding multiple veterinarians who know them well enough to write detailed recommendations — is essentially solved before you even start the bridge.

Who to ask

Your strongest letter writers are practicing veterinarians who have supervised you for at least one year and have seen you in clinically demanding situations. Emergency clinic veterinarians who’ve worked overnight shifts with you, specialty practice veterinarians who’ve trained you on advanced procedures, general practice owners who’ve trusted you with progressively complex case responsibility — these are the relationships that turn into strong DVM letters. Two to three veterinarians, ideally from different practice settings (small animal + specialty, or general practice + emergency), produce the diversity of perspective admissions committees value.

Beyond veterinarian letters

Many DVM programs allow one of the letters to come from a non-veterinarian who can speak to academic ability or character. For RVTs, strong options include: a CVTEA program instructor (your AS program faculty, ideally one who taught you a science course rather than a clinical course); a science instructor from your prerequisite coursework (build this relationship intentionally during the bridge phase — most online and community college instructors will write strong letters for engaged students); or a veterinary specialist you’ve assisted on research or teaching cases.

Timing

Request letters of recommendation 6-8 months before VMCAS submission. Give your writers the VMCAS letter portal link, a current resume, your draft personal statement, and a brief summary of why you’re pursuing DVM. Provide context on which DVM programs you’re applying to so they can tailor letters if appropriate. Many writers appreciate a list of specific qualities or experiences you’d like them to address — this helps them write more substantive letters than generic templates.

Frequently asked questions

Will I be a competitive applicant compared to traditional pre-vet undergraduates?

Generally yes, and often more competitive. Traditional pre-vet undergraduates apply with 500-1,500 veterinary experience hours, limited clinical depth, and letters from veterinarians they’ve known for 1-2 years. You apply with 5,000-15,000 hours of credentialed clinical experience, deep procedural skill, and letters from veterinarians who’ve trusted you with patient care. The dimension where traditional pre-vet undergraduates may have an edge is recent strong science GPA from a four-year university — and that’s specifically what the bridge phase addresses. A well-executed RVT bridge produces an applicant who is competitive at most US programs and frequently advantaged at programs that weight clinical experience heavily (Texas Tech, Iowa State, Tuskegee, and others).

Should I do a bachelor’s in Animal Science or stay in vet tech and bridge separately?

Both work, with different trade-offs. A bachelor’s in Animal Science from a four-year university gives you a completed BS, satisfies bachelor’s degree requirements at all US vet schools, and produces a stronger overall transcript. The trade-off is time and cost — 4 years and $40,000-$120,000+ for a full bachelor’s. Bridging separately (AS + bachelor’s completion + prerequisites) is faster (24-30 months) and cheaper ($15,000-$25,000 typically), but produces a less unified academic credential. For RVTs already credentialed and working, the bridge approach is structurally more efficient. The Animal Science bachelor’s makes more sense for vet tech students who haven’t yet completed their AS and can choose between continuing toward AS+RVT credentialing or switching to a 4-year Animal Science BS path.

Can my hospital employer help pay for prerequisite coursework?

Often yes. Many veterinary hospitals and corporate veterinary groups (Banfield, BluePearl, VCA, Mars Veterinary Health, and others) offer tuition reimbursement programs for credentialed technicians pursuing additional education. Programs vary — some cover only coursework directly related to the technician role; others extend to DVM-pursuit coursework as career development. Frame the request as career development aligned with the hospital’s workforce needs, document the specific courses and their accreditation, and submit through the standard tuition reimbursement process. Even partial coverage ($1,000-$3,000 per year) substantially reduces out-of-pocket costs over the 18-24 month bridge phase. Always verify your hospital’s policy with HR before assuming costs are entirely out-of-pocket.

How does my RVT GPA factor into VMCAS calculations?

VMCAS calculates several GPAs from all undergraduate coursework, including your AS-level vet tech courses. Your overall cumulative GPA includes all undergraduate credits (AS courses + prerequisite courses + bachelor’s completion courses if applicable). Your science GPA includes only the courses VMCAS categorizes as science — veterinary technology specialty courses (clinical nursing, anesthesia, dentistry) typically don’t count as science; general biology, chemistry, organic chemistry, biochemistry, microbiology, physics, anatomy, and physiology do. The most-recent-45-units GPA includes your most recent 45 semester units regardless of program — for RVTs in the middle of the bridge phase, this is typically dominated by recent prerequisite coursework, which means strong performance in the bridge phase substantially repairs older GPAs.

Should I take the GRE?

Only if specifically required by a target program. The GRE has been removed from admission requirements at most US DVM programs (UC Davis removed it November 2022, with most other programs following). As of the 2026-2027 application cycle, fewer than 10 US DVM programs still require GRE scores. Verify each target program’s current GRE policy before investing in GRE preparation. For most RVTs, GRE preparation is no longer a necessary component of the bridge timeline.

How do I make sure my AS courses transfer to a bachelor’s completion program?

Request an official course-by-course transcript evaluation from any bachelor’s completion program before enrolling. Most programs publish their AS-credit-acceptance policies and can provide preliminary evaluation within a few weeks. CVTEA-accredited program credits transfer well to most regionally accredited four-year universities — the question is which specific courses count toward general education versus elective credits, and which DVM prerequisite categories are satisfied by AS coursework versus additional bachelor’s-level coursework. The transfer evaluation should produce a written document specifying exactly which AS credits transfer, which prerequisites are satisfied, and which courses remain for bachelor’s completion.

Should I get specialty certification (VTS) before applying to DVM?

VTS certification (Veterinary Technician Specialty in emergency, internal medicine, dentistry, anesthesia, behavior, clinical practice, surgery, zoological medicine, equine, dermatology, nutrition, or ophthalmology through the NAVTA-affiliated academies) is valuable but not specifically required for DVM admission. The decision to pursue VTS depends on your timeline and career goals. If you plan to apply to DVM programs within 2 years, VTS preparation (typically 2-4 years including required cases) is unlikely to complete before application — and the time investment may delay your DVM matriculation more than it strengthens your application. If your DVM timeline is 5+ years out (or if you’re uncertain about pursuing DVM and want to advance your RVT career first), VTS makes more sense. Most RVTs pursuing the DVM bridge skip VTS and focus on prerequisite completion.

The bottom line

Credentialed veterinary technicians are among the strongest applicant profiles US DVM programs see — not despite the AS-level education, but because of the depth of clinical experience, the demonstrated commitment to veterinary medicine, and the supervising-veterinarian relationships that build into substantive letters of recommendation. The rate-limiter on your DVM application isn’t motivation or experience. It’s the prerequisite gap between what your CVTEA-accredited AS program covered and what DVM programs require — and that gap is well-defined, completely closable, and typically completable in 18-24 months alongside continued RVT employment.

The realistic bridge plan for most RVTs: 18-24 months of prerequisite coursework totaling 35-45 semester credits (less than the 40-50 credits non-science career changers face), continued RVT employment to maintain income and accumulate additional experience hours during the bridge, bachelor’s completion program enrollment if your target DVM list includes programs requiring a bachelor’s degree, and VMCAS submission in the application cycle approximately 12 months before target matriculation. Total cost: typically $8,000-$20,000 for prerequisites and bachelor’s completion combined, substantially less than the $40,000-$120,000+ a second bachelor’s degree would cost.Browse the PrereqCourses.com course catalog to view the courses that satisfy DVM prerequisites — biology, chemistry, organic chemistry, biochemistry, microbiology, genetics, statistics, and anatomy/physiology, all delivered through Upper Iowa University with self-paced monthly enrollment that fits around RVT shift schedules. Consult the AAVMC’s Veterinary Medical School Admissions Requirements (VMSAR) to map your specific prerequisite gap against each target program’s requirements, and the VMCAS application portal to track application timeline milestones. Your career foundation is already built. The bridge is the academic infrastructure to match it.