BIO 202 ACTUAL PAPER 2026 VERIFIED
SOLUTIONS GRADED A+
◉ What are the four levels of organization?
Answer: -cells
-tissues
-organs
-organ systems
◉ What is a tissue?
Answer: groups of cells similar in structure and function
◉ What are the 3 germ layers?
Answer: -endoderm
-mesoderm
-ectoderm
◉ What is endoderm?
Answer: gives rise to epithelium that lines internal structures
,◉ What is mesoderm?
Answer: give rise to muscle, bone and other connective tissue
◉ What is ectoderm?
Answer: give rise to outer epithelium and to nerve tissue
◉ What are the four principle tissue types?
Answer: -epithelial
-connective
-muscle
-nerve
◉ What are organs?
Answer: body structures composed of different tissues that form a
unit
◉ What is an organ system?
Answer: group of organs that function together to carry out major
activities
◉ How many principle organ systems are there?
Answer: 11:
,-circulatory
-digestive
-endocrine
-integumentary
-lymphatic/immune
-muscular
-nervous
-reproductive
-respiratory
-skeletal
-urinary
◉ What are the characteristics of epithelial tissue?
Answer: -cover body surfaces
-provide a barrier or a passage to substances
-some become glands for secretion
-has ability to constantly replace its cells
◉ What is an exocrine gland?
Answer: releases secretion external environment
◉ What is an endocrine gland?
, Answer: secrete hormones throughout body
◉ What are the two general classes of epithelial membranes?
Answer: Simple and stratified
◉ What is simple epithelial membranes?
Answer: one cell layer thick
ex: capillaries
◉ What are stratified epithelial membranes?
Answer: several cell layers
ex: skin
◉ What other subdivisions of shape are epithelial membranes
divided into?
Answer: -squamous cells (flat plate like layers)
-cubiodal cells (cubes - kidney/renal)
-columnar cells (intestinal tract)
◉ What is special connective tissues?
Answer: -cartilage, bone, and blood
SOLUTIONS GRADED A+
◉ What are the four levels of organization?
Answer: -cells
-tissues
-organs
-organ systems
◉ What is a tissue?
Answer: groups of cells similar in structure and function
◉ What are the 3 germ layers?
Answer: -endoderm
-mesoderm
-ectoderm
◉ What is endoderm?
Answer: gives rise to epithelium that lines internal structures
,◉ What is mesoderm?
Answer: give rise to muscle, bone and other connective tissue
◉ What is ectoderm?
Answer: give rise to outer epithelium and to nerve tissue
◉ What are the four principle tissue types?
Answer: -epithelial
-connective
-muscle
-nerve
◉ What are organs?
Answer: body structures composed of different tissues that form a
unit
◉ What is an organ system?
Answer: group of organs that function together to carry out major
activities
◉ How many principle organ systems are there?
Answer: 11:
,-circulatory
-digestive
-endocrine
-integumentary
-lymphatic/immune
-muscular
-nervous
-reproductive
-respiratory
-skeletal
-urinary
◉ What are the characteristics of epithelial tissue?
Answer: -cover body surfaces
-provide a barrier or a passage to substances
-some become glands for secretion
-has ability to constantly replace its cells
◉ What is an exocrine gland?
Answer: releases secretion external environment
◉ What is an endocrine gland?
, Answer: secrete hormones throughout body
◉ What are the two general classes of epithelial membranes?
Answer: Simple and stratified
◉ What is simple epithelial membranes?
Answer: one cell layer thick
ex: capillaries
◉ What are stratified epithelial membranes?
Answer: several cell layers
ex: skin
◉ What other subdivisions of shape are epithelial membranes
divided into?
Answer: -squamous cells (flat plate like layers)
-cubiodal cells (cubes - kidney/renal)
-columnar cells (intestinal tract)
◉ What is special connective tissues?
Answer: -cartilage, bone, and blood
