Comparative Animal Physiology Laboratory

Course Description

Comparative Animal Physiology Laboratory covers general and comparative animal physiology — complex structures, phenomena, and concepts involved in the regulation of a variety of physiological mechanisms. UWF publishes that a Material and Supply Fee and an Equipment Fee will be assessed, and that the laboratory requires the use of living animals, in most cases invertebrates.

Within the SCNS taxonomy, PCB is the Process Biology prefix. The University of West Florida publishes this at 1 semester hour through the Department of Biology, College of Science and Engineering. It is offered at approximately 3 Florida institutions.

⚠⚠ This is the only course found so far in this catalog whose published description contains an ethical statement about how organisms are to be treated. UWF sets out, in the catalog itself, that living animals are used, that they are to be handled carefully and treated ethically, and that experiments are designed for maximal educational value with minimal insult and stress. Read the full note below before registering.

Physiology is a measurement discipline, and this is where that becomes real. Recording a nerve impulse, a heart rate, an oxygen consumption or a muscle twitch teaches something a lecture cannot: living preparations are noisy, variable, and time-limited, and getting clean data from one is a skill.

⚠ Two fees are assessed here, a Material and Supply Fee and an Equipment Fee — more than the single fee on most PCB laboratories, and consistent with a course that runs instrumentation.

⚠ The contact-hour figure is derived — the University of West Florida publishes none

UWF's catalog publishes a credit value in semester hours, the college and department, prerequisites and co-requisites, and fee notices. It does not publish contact hours, a lecture and laboratory split, or terms of offering for any course. Every contact-hour value in a UWF guide in this repository is derived. The figure applies the convention established for science laboratories at UWF — 45 contact hours for 1 semester hour, matching the live EVR2001L and OCE1001L rather than the 30 used for allied-health teaching laboratories. A 1-credit science laboratory meeting three hours a week across a fifteen-week term reaches 45, which is the usual shape. Confirm the meeting schedule with the department.

Learning Outcomes

Required Outcomes

• Apply laboratory safety and ethical practice in work with living organisms.
• Describe the ethical framework and oversight governing animal use in teaching.
• Handle living organisms competently and with minimal stress.
• Use physiological recording instrumentation correctly.
• Calibrate instruments and verify a measurement before trusting it.
• Record and interpret electrical activity from nerve or muscle.
• Measure and interpret muscle contraction and its properties.
• Measure heart rate and cardiac responses to defined stimuli.
• Measure respiratory or metabolic rate and interpret the result.
• Investigate thermal responses in ectothermic animals.
• Investigate osmoregulatory responses to changed salinity.
• Design a controlled physiological experiment with appropriate controls.
• Recognise and account for biological variability between individuals.
• Apply appropriate statistical analysis to physiological data.
• Produce clear graphs of physiological recordings and data.
• Compare physiological responses across species and interpret differences.
• Keep a laboratory notebook another worker could reproduce from.
• Write a scientific laboratory report in standard format.
• Discuss the limits of extrapolating from one species to another.

Optional Outcomes

• Read and interpret a primary research paper in the field.
• Relate the material to a Florida ecosystem, organism, or health problem.
• Describe current research directions in the area.
• Describe how the material supports graduate or professional study.
• Seek undergraduate research experience related to the topic.

Major Topics

Required Topics

• Safety and ethical practice with living organisms
• Animal use oversight in teaching
• Handling technique
• Physiological instrumentation
• Calibration and verification
• Electrical recording from nerve and muscle
• Muscle contraction properties
• Cardiac measurement
• Respiratory and metabolic rate measurement
• Thermal responses in ectotherms
• Osmoregulatory responses
• Experimental design and controls
• Biological variability
• Statistical analysis
• Graphing physiological data
• Cross-species comparison
• Laboratory notebooks
• Scientific reporting
• Limits of extrapolation

Optional Topics

• Primary literature
• Florida applications
• Current research directions
• Graduate and professional preparation
• Undergraduate research

Resources & Tools

• The laboratory manual the instructor issues — protocols involving living organisms must be read before the session, not during it.
• Your comparative physiology text — Hill or Eckert; the laboratory work is far more meaningful when the mechanism is already familiar.
• LabChart, BIOPAC or equivalent recording software — whichever system the department runs; student versions and tutorials are generally available free and an hour with them before the first session pays for itself.
• The Journal of Experimental Biology — through the UWF library; methods sections in this journal show how the same measurements are made in research.
• The NIH Guide for the Care and Use of Laboratory Animals and your institution's IACUC pages — free; the framework behind the rules you will be asked to follow.
• R or a spreadsheet — R is free; physiological data is variable enough that eyeballing it is not sufficient.
• NCBI (ncbi.nlm.nih.gov) — free; PubMed, GenBank, BLAST and the rest of the toolkit, used professionally rather than only pedagogically.
• A UWF librarian — included in enrolment; an hour on database searching pays for itself across a whole degree.

Career Pathways

• Biological technicians — SOC 19-4021; the common direct entry point with a bachelor's degree.
• Biological scientists — SOC 19-1020; ⚠ independent research roles generally require a doctorate, and this is worth knowing early rather than late.
• Medical and clinical laboratory technologists — SOC 29-2011; ⚠ note that Florida licenses clinical laboratory personnel, so a biology degree alone does not permit bench work in a clinical laboratory — see the MLS prefix guides.
• Biotechnology and pharmaceutical industry — research associate, quality control and manufacturing roles; molecular technique competence is the entry currency.
• Environmental and conservation science — SOC 19-2041; Florida Fish and Wildlife Conservation Commission, water management districts, the Florida Department of Environmental Protection, and consulting firms.
• Marine and coastal science — a genuine Florida strength, including NOAA, Florida Sea Grant, Mote Marine Laboratory and the estuarine programmes on the Gulf coast near UWF.
• Public health laboratories — the Florida Department of Health Bureau of Public Health Laboratories.
• Science teaching — SOC 25-2031; ⚠ Florida K-12 teaching requires state certification that a biology degree alone does not provide.
• Professional and graduate pathways — medicine, dentistry, veterinary medicine, physician assistant, pharmacy, and research doctorates. This prefix is the core of a pre-health undergraduate plan.
• ⚠ An honest note on laboratory experience. Coursework laboratories are necessary and not sufficient — undergraduate research with a faculty member is what distinguishes a competitive graduate or professional applicant, and it is arranged by asking, usually earlier than students think.

Special Information

⚠⚠ PCB4723 and PCB4723L — how the pair is bound

• UWF publishes a Co-requisite: PCB4723 field on the laboratory entry. The lecture does not name the laboratory in return, so the binding runs one way — a student can take the lecture without the laboratory.
• ⚠ Many Florida institutions carry this material as a single integrated C course. UWF splits it into separately numbered lecture and laboratory, and SCNS equivalency does not cross numbers — so transfer between the two forms is evaluated by hand. Carry a syllabus in either direction.
• Take them together where the department intends it. The laboratory is designed to run alongside the lecture topics.
• ⚠ Budget for the pair. It is 4 semester hours in total, not 3, and the laboratory carries its own scheduled session.

⚠⚠⚠ This laboratory uses living animals — UWF says so in the catalog

• UWF publishes, unusually, an ethical statement inside the course description itself: the course "requires the use of living animals, in most cases invertebrates," and directs that they "should be handled carefully and treated ethically," with each experiment "designed to provide maximal educational value with minimal insult and stress to the test" organism.
• ⚠ Very few catalog entries in any prefix say anything like this. Treat its presence as meaningful: the department expects the ethical framing to be part of the course, not an afterthought.
• ⚠⚠ Know before you register. If working with living animals is something you object to or cannot do, find that out now and speak to the department — not in week four.
• The catalog's parenthetical about invertebrates not perceiving pain "as you and I interpret it" reflects a real distinction in nervous system organisation, but it is a question the scientific literature is actively revising — evidence for nociception and for pain-like states in some invertebrates, particularly cephalopods and decapod crustaceans, has grown considerably. Several jurisdictions now extend legal protection to those groups. This guide records the catalog statement as published and notes that the science behind it is not settled.
• The practical standard does not depend on resolving that question: minimise number, minimise distress, follow the protocol exactly, and report anything that goes wrong immediately. Vertebrate work at any institution additionally falls under IACUC oversight.

⚠ A laboratory fee is assessed

• UWF publishes two fee notices on this entry: a material and supply fee and an equipment fee. Both are charged in addition to tuition and neither amount is published in the course entry.
• The amount is in the catalog's separate Material & Supply and Equipment Fees section. ⚠ Budget for it — laboratory fees are billed with tuition and are invisible when a term's cost is estimated from credit hours alone.
• Ask the department for the cumulative total across a term of laboratory courses, since a science student commonly takes more than one.

⚠ Offered concurrently with the graduate PCB5727L

• UWF teaches this alongside PCB5727L, with graduate students assigned additional work. The pattern is routine at UWF and is confined to 4000-level courses across the corpus.
• The effect on an undergraduate is a section with graduate students in it and reading pitched to work at both levels. Undergraduate requirements are lower by design — the differential is in the additional graduate work.
• ⚠ For a student considering graduate study it is a useful preview, and the instructor sees you working next to the standard you would be held to.

⚠⚠ The asterisk in a UWF prerequisite means the course may be taken at the same time

• UWF marks a concurrent course with an asterisk, defined on the catalog's Course Information page as: "This course may be taken prior to or during the same term."
• ⚠ A prerequisite written WITHOUT an asterisk must be completed first; one written WITH an asterisk may be taken in the same term. Reading an asterisked prerequisite as sequential adds a term for no reason.
• UWF also uses an explicit Co-requisite: field, which is the stricter form — conventionally meaning the same term rather than prior-or-same. Both notations appear in this prefix.
• Confirm with an advisor; the registration system, not the catalog text, is what enforces it.

⚠⚠ Biology laboratory safety

• Know the location of the eyewash, safety shower, fire extinguisher and spill kit before you start work. That is a real instruction rather than a formality.
• ⚠ Eye protection and a lab coat are required, closed shoes are required, and never eat, drink or store food in a laboratory.
• Microbiological work is conducted at the containment level the organism requires, and ⚠ cultures are never opened outside the appropriate containment. Everything is autoclaved or disinfected before disposal.
• ⚠⚠ Human tissue, blood and body fluids are handled under Standard Precautions and are treated as infectious regardless of source. Sharps go into a sharps container at the point of use, and needles are never recapped by hand.
• Chemical hazards are real in a molecular laboratory — some nucleic acid stains and fixatives are mutagenic or carcinogenic, and phenol and chloroform cause chemical burns. Read the safety data sheet before first use, not after.
• ⚠ Ultraviolet transilluminators cause eye and skin burns; use the shield.
• Report every spill, cut and exposure immediately, however minor it seems.
• Tell the instructor if you are pregnant or immunocompromised; several standard laboratory materials and organisms warrant substitution.

Course format and position in the curriculum

• Scheduled laboratory sessions with pre-laboratory preparation and written work.
• ⚠ No "permission is required" marking appears anywhere in the PCB prefix, unlike UWF's clinical health prefixes — enrolment is gated by prerequisites rather than by cohort admission.
• UWF publishes no contact hours, lecture and laboratory split, or terms of offering for any course. Confirm the offering pattern with the department.

How Florida course levels affect transfer

The first digit of an SCNS number denotes the year of offering, not transferability. Courses at the 1000 and 2000 levels transfer transparently between Florida public institutions, and 3000 to 4000 is unproblematic since both are upper division. The boundary that actually matters is 2000 to 3000, where lower-division credit generally cannot satisfy an upper-division requirement. ⚠ For biology the specific transfer hazard is the split-versus-integrated question: UWF numbers lecture and laboratory separately where many institutions use one C course, and SCNS equivalency does not cross numbers. Carry a syllabus, and expect a transfer evaluation of either half to be done by hand.

PCB4723L is 1 semester hour at the University of West Florida.