Biology II Laboratory

Course Description

BSC2011L — Biology II Laboratory (titled variously across Florida institutions as Integrated Principles of Biology II Laboratory, Biology for Science Majors II Laboratory, Biodiversity Laboratory, or Biological Science II Laboratory) is the laboratory companion to BSC2011, the second semester of the science-majors biology sequence in the Florida Statewide Course Numbering System (SCNS). It is a 1-credit lab course meeting approximately 2-3 hours per week, with most institutions accumulating 30 to 45 total contact hours over a 15-week semester.

While BSC2010L addresses the cell and molecular foundations of biology, BSC2011L pivots to the organismal level: the diversity of life on Earth, the principles of evolution and classification, the survey of major taxonomic groups (Bacteria, Archaea, Protists, Fungi, Plants, and Animals), introductory plant and animal anatomy and physiology, and basic ecology and ecosystem study. Through guided observation, dissection, and field-based or simulated investigations, students develop the comparative biology skills central to the BSC2011 lecture.

BSC2011L is part of the Florida General Education core requirement for natural science (science majors track) and articulates seamlessly across all Florida public colleges and the State University System under the Statewide Course Numbering System. The course is offered at approximately 21 Florida institutions including the State College of Florida, Florida State College at Jacksonville, Indian River State College, Tallahassee State College, Valencia College, Miami Dade College, Florida Gulf Coast University, the University of South Florida, and the University of Florida.

Learning Outcomes

Required Outcomes

Upon successful completion of this course, the student will be able to:

• Demonstrate continued application of the scientific method, including hypothesis formulation, experimental design, and the interpretation of comparative biological data.
• Use a dichotomous key to identify unknown organisms; construct simple keys for a defined set of specimens.
• Construct and interpret cladograms and phylogenetic trees from morphological and molecular character data; identify monophyletic, paraphyletic, and polyphyletic groupings.
• Identify representative organisms from each major domain and kingdom — Bacteria, Archaea, Protista, Fungi, Plantae, and Animalia — using microscopic and macroscopic specimens, and describe the diagnostic features of each group.
• Identify and compare the major plant divisions (Bryophyta, Pteridophyta, Gymnosperms, Angiosperms), including life cycle (alternation of generations), gametophyte and sporophyte stages, and reproductive structures.
• Identify and compare the major animal phyla (Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Mollusca, Arthropoda, Echinodermata, Chordata), including body plan, symmetry, and key evolutionary innovations.
• Perform a structured dissection (commonly fetal pig, perch, frog, earthworm, crayfish, and/or grasshopper depending on institutional curriculum) and identify major organ systems and anatomical features.
• Demonstrate understanding of plant histology through observation of root, stem, leaf, and reproductive tissue under the microscope; differentiate monocot and dicot tissues.
• Investigate population ecology through life-table analysis, population growth modeling, or species-distribution sampling.
• Investigate community ecology through species-richness or diversity index calculations on simulated or field-collected data, including the use of indices such as Simpson's or Shannon-Wiener.
• Communicate scientific findings through laboratory reports that follow standard scientific format, including correctly formatted tables, figures, and references.

Optional Outcomes

Depending on the institution and lab manual, students may also:

• Conduct field-based observations at a campus or community natural area, recording species observations through platforms such as iNaturalist (used at USF and other Florida institutions).
• Conduct experiments on animal physiology, including muscle contraction, sensory response, or basic vertebrate cardiovascular measurements.
• Conduct plant physiology experiments such as transpiration, phototropism, or seed germination under variable conditions.
• Compare vertebrate skeletal anatomy across classes (Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, Mammalia) using mounted skeletons or models.
• Investigate bacterial or fungal diversity through colony characterization, simple staining (Gram stain), or microbial culture work.
• Conduct an independent inquiry project on a biodiversity, ecology, or organismal-biology question of student design within instructor-defined safety boundaries.

Major Topics

Required Topics

• Evolutionary theory and natural selection — observation of evolutionary outcomes through model systems (e.g., brine shrimp salinity tolerance, peppered-moth simulations) and the chronological logic of the fossil record.
• Taxonomy and classification — the binomial system, the hierarchical taxonomic ranks (domain, kingdom, phylum, class, order, family, genus, species), and the construction and use of dichotomous keys.
• Phylogenetics and cladistics — the construction of cladograms from character matrices, identification of synapomorphies, and the interpretation of monophyletic, paraphyletic, and polyphyletic groupings.
• Bacteria, Archaea, and Protista — survey of prokaryotic and protistan diversity through prepared slides and live or preserved cultures; ecological roles of microorganisms.
• Fungi — comparative survey of major fungal groups (Zygomycota, Ascomycota, Basidiomycota), reproductive structures, and ecological roles (decomposers, mutualists, pathogens).
• Plant diversity and life cycles — alternation of generations across major plant divisions; comparative observation of mosses, ferns, gymnosperms, and angiosperms; flower structure, pollination, and seed development.
• Plant tissues and anatomy — observation of root, stem, leaf, and reproductive tissue cross-sections; differentiation of monocot and dicot anatomy; identification of meristematic, vascular, dermal, and ground tissues.
• Animal diversity — comparative survey of major invertebrate phyla (Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Mollusca, Arthropoda, Echinodermata) and the chordates; body plans, symmetries, and evolutionary innovations (cephalization, segmentation, coelom, deuterostome vs. protostome development).
• Vertebrate dissection and anatomy — major organ systems (digestive, circulatory, respiratory, urogenital, nervous) typically observed through fetal pig, perch, frog, or earthworm dissection.
• Population and community ecology — life tables, age structure, population growth models (exponential and logistic), species-richness and diversity indices, and trophic interactions.
• Scientific communication — continued development of formal lab-report writing, accurate citation of primary literature, and presentation of comparative observations and quantitative ecological data.

Optional Topics

• Florida-specific biodiversity — observation of native and invasive species through field trips or citizen-science platforms (iNaturalist), with relevance to Florida's unique ecological context.
• Marine biology introduction — survey of marine invertebrates and vertebrates, particularly relevant at coastal Florida institutions.
• Microbiology techniques — colony observation, Gram staining, simple culture techniques, and aseptic technique introduction.
• Comparative vertebrate anatomy — beyond a single dissection, comparison of vertebrate classes through models and skeletons.
• Plant or animal physiology experiments — transpiration, phototropism, seed germination, muscle contraction, or sensory-response investigations.
• Behavioral biology — simple ethograms, animal-behavior observation in invertebrate models (planaria, Daphnia, isopods).
• Independent inquiry project — student-designed investigation following the full scientific-method sequence, often presented as a poster or formal report.

Resources & Tools

• Lab manual — varies by institution; commonly used manuals include the McGraw-Hill Biology Laboratory Manual by Vodopich and Moore (Volume 2 organismal/biodiversity sections), Hayden-McNeil customized manuals, Carolina Biological Supply lab kits, and institution-authored manuals updated annually.
• Compound and dissecting (stereo) microscopes — both are essential for tissue observation and whole-specimen examination.
• Dissection equipment — dissection trays, scalpels, scissors, forceps, dissection pins, and protective equipment; preserved specimens (fetal pig, perch, frog, earthworm, grasshopper, crayfish) ordered annually from biological supply houses (Carolina Biological, Ward's Science).
• Prepared microscope slides — bacterial, protistan, fungal, plant tissue (monocot/dicot root, stem, leaf cross-sections; pollen; ovule), and animal tissue (representative phyla histology).
• Live and preserved specimens — moss, fern, conifer, and angiosperm samples; mounted skeletons or skulls; preserved invertebrates representing major phyla.
• iNaturalist (inaturalist.org) — citizen-science species observation platform used at USF and other Florida institutions for biodiversity documentation.
• HHMI BioInteractive (biointeractive.org) — virtual labs and case studies on evolution, biodiversity, and ecology.
• Spreadsheet and graphing software — Microsoft Excel, Google Sheets, or similar; used for ecological diversity index calculations and population modeling.
• Personal protective equipment (PPE) — safety goggles, lab coats or aprons, closed-toe shoes, and disposable gloves are required for dissection and chemical handling.

Career Pathways

BSC2011L completes the science-majors biology laboratory sequence (BSC2010L + BSC2011L) and is a foundational requirement for nearly all life-sciences and health-professions programs. Successful completion supports entry into:

• Biological Sciences (B.S.) at any Florida public university, with concentrations in ecology, evolutionary biology, organismal biology, marine biology, and integrative biology.
• Pre-medical, pre-dental, pre-veterinary, pre-pharmacy, pre-physician-assistant, and pre-optometry tracks — the BSC2010 + BSC2010L + BSC2011 + BSC2011L sequence is a near-universal requirement.
• Marine Biology, Marine Science, and Oceanography — particularly relevant to Florida's coastal economy and to programs at FIU, UM, FAU, USF, NSU, FGCU, and the University of Florida's Whitney Laboratory.
• Wildlife Biology, Conservation Biology, and Ecology — supporting careers with the Florida Fish and Wildlife Conservation Commission, the U.S. Fish and Wildlife Service, the National Park Service (Everglades, Biscayne, Dry Tortugas), the South Florida Water Management District, and the Florida Department of Environmental Protection.
• Environmental Consulting and Restoration — Florida's robust environmental consulting industry, particularly active in wetland restoration, invasive species management, and coastal/marine assessment.
• Forestry and Agricultural Sciences — supporting careers with the Florida Forest Service, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) extension, and the agricultural-research industry.
• Forensic Biology, Public Health Microbiology, and Veterinary Technology — the comparative-organismal foundation supports more specialized upper-division work.
• Science Education (B.S.E. or M.A.T.) — Biology Track — Florida public-university science education programs require demonstrated competency across both BSC2010L and BSC2011L.

Special Information

Articulation and Transfer

BSC2011L is part of the Florida General Education core natural-science requirement (science-majors track) and articulates without loss of credit between any two Florida public colleges and the State University System under the Statewide Course Numbering System. Students who complete BSC2011 + BSC2011L at one Florida public institution receive equivalent credit at any other for the purpose of completing the A.A. and progressing to upper-division coursework.

Distinction from BSC1011 / BSC1011L (Non-Majors Biology II)

As with the Biology I sequence, Florida public colleges offer a parallel non-majors biology sequence (BSC1011 + BSC1011L). This sequence does not satisfy the prerequisite for upper-division biology, pre-medical, or biological-sciences-major coursework. Students should verify with their academic advisor that they are enrolled in the correct sequence for their intended degree path.

Course Format

BSC2011L is typically offered as a 2-3 hour weekly laboratory meeting separate from the lecture (BSC2011), which is itself a 3-credit course meeting 3 hours per week. Some institutions offer combined lecture-and-lab sections under the BSC2011C designation; in those cases, BSC2011L is not separately enrolled. Students should verify enrollment requirements with their institutional advisor.

Dissection and Specimen Use

BSC2011L involves the dissection of preserved animal specimens. Students with religious, ethical, or other concerns about dissection should consult the instructor at the start of the semester regarding alternative virtual or model-based assignments. Most Florida institutions can accommodate alternative assessment options, though full participation in physical dissection is generally expected.

Corequisite Enrollment

Most Florida public colleges require concurrent or prior completion of BSC2010 and BSC2010L, and concurrent or prior enrollment in BSC2011 lecture, as prerequisites or corequisites for BSC2011L.

Prerequisites

Standard prerequisites include successful completion of BSC2010 + BSC2010L (or BSC2010C) with a grade of C or better. Some institutions may waive the BSC2010L prerequisite for students who entered the major via transfer credit; consult the institutional catalog.

Time Commitment

Although BSC2011L is a 1-credit course, the time commitment substantially exceeds the credit hour. In addition to the 2-3 hours of in-lab time per week, students should plan on 3-5 additional hours per week for pre-lab reading and quizzes, post-lab analysis, formal lab reports, dissection-specimen identification practice, and exam preparation.

AI Integration

Generative-AI tools may be useful for explaining unfamiliar taxonomic terminology, generating practice cladograms or phylogenetic-tree exercises, summarizing organism characteristics, or improving the clarity of written lab reports. Students must consult institutional and instructor-specific policies on AI use; expectations differ across Florida institutions and individual instructors. The fundamental skills of careful specimen observation, accurate identification, and original written communication remain irreducibly the student's responsibility, and AI cannot substitute for direct laboratory observation and dissection experience.