BIO 202 Exam 3 Study Guide 2025: Biology Practice Questions & Key Concepts

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EXAM 3: BIO202 / BIO202 (LATEST 2025 UPDATES

STUDY BUNDLE WITH COMPLETE SOLUTIONS) HUMAN

ANATOMY AND PHYSIOLOGY II EXAM | QUESTIONS

AND VERIFIED ANSWERS | 100% CORRECT | GRADE

A - GCU

Clades of Animals are organized by, what? .....ANSWER.....Body

Symmetry

Three types of body symmetry .....ANSWER.....-

Asymmetrical(sponges)

-Radial(cnidarians & ctenophores)

-Bilateral (most animals, at least in their larval stage)

3 types of plains (used to determine body symmetry)

.....ANSWER.....-Traverse plane(top to bottom)

-frontal plane(separates front to back)

-Misdsagitial plane(left to right)

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Tissue development, types of organisms (via germ layers)

.....ANSWER.....-Diploblast (2 living germ layers, no mesoderm)

-triploblast (three living germ layers, has a body cavity)

3 Types of body cavities .....ANSWER.....-Acelomate:no body

cavity

-pseudocelomate:false body cavity

-coelomates:true body cavity

Hierarch of organization .....ANSWER.....1-cells

2-tissue

3-organ

4-organ system

cells .....ANSWER.....-structural, functional and biological (units of

life)

Tissue .....ANSWER.....-group of similar cells working together

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organ .....ANSWER.....-2 or more types of tissue working together

for a purpose/ function

Organ system .....ANSWER.....-group of organs working together

for a purpose/ function

Epithelial Tissue .....ANSWER.....-closely packed cells that form a

lining

Different styles of Epithelial cells .....ANSWER.....-simple (1 layer)

-stratified (multiple layers)

shapes of epithelial cells .....ANSWER.....-squamous (flat cells)

-cuboidal (cube shaped)

-columnar (tall cells with nucleus at the bottom of the cell)

Purpose of the 3 types of simple epithelial cells .....ANSWER.....-

squamous(Moves material in and out of the body easily)

-cuboidal(allows movement of water and small molecules)

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-columnar(holds mucus, lines digestive organs, absorbs nutrients)

Purpose of the 3 types of stratified epithelial cells

.....ANSWER.....-squamous(outer layer of skin, mouth and vagina)

-cuboidal(lines ducts of sweat glands, secretes water and small

molecules)

-columnar(lines mamilary glands and larynx, secretes mucus)

Basement layer .....ANSWER.....-bottom layer of cells that are

nonliving and form a membrane

Muscle Tissue .....ANSWER.....-made up of myocytes(muscle fibers

and muscle cells) that contract by shortening in length

3 types of muscle tissue .....ANSWER.....-skeletal

-smooth

-cardiac

skeletal muscle .....ANSWER.....-multi-nuclei, stratified, voluntary

cells, connected to the skeleton to create movement