BIO201 Midterm Exam 2025
An investigator who conducts an experiment to determine how changes in pH affect the
function of enzymes on digestion is most likely to be a(n)
Select one:
a. neurologist.
b. anatomist.
c. engineer.
d. physiologist.
e. histologist. - Correct Ans-d. physiologist.
This is a sagittal section through the abdominopelvic cavity. What cavity does "D"
represent?
Select one:
a. visceral peritoneum (covers organs)
b. mesentery
c. parietal peritoneum (lines cavity)
d. retroperitoneal organs
e. peritoneal cavity - Correct Ans-e. peritoneal cavity
When the dominant allele does not completely mask the effects of the recessive allele in
the heterozygote, it is called
Select one:
a. dominance.
b. polygenic dominance.
c. codominance.
d. incomplete dominance.
e. corecessive. - Correct Ans-d. incomplete dominance.
The antebrachial region is the
Select one:
a. area in front of the elbow.
b. chest area.
c. lower back.
d. bottom of foot.
e. forearm. - Correct Ans-e. forearm.
What is a malignant neoplasm derived from epithelial tissue?
Select one:
a. metastasis
b. malignant
c. sarcoma
d. benign
e. carcinoma - Correct Ans-e. carcinoma
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The process of meiosis will _____ as the gametes are produced.
Select one:
a. cut the chromosome number by 1/3
b. cut the chromosome number by 1/2
c. double the chromosome number
d. not change the chromosome number
e. triple the chromosome number - Correct Ans-b. cut the chromosome number by 1/2
When ionic compounds dissolve in water, their ions
Select one:
a. cling tightly together.
b. dissociate or separate from one another.
c. lose their charge.
d. get lost in the solvent.
e. settle to the bottom of the container. - Correct Ans-b. dissociate or separate from one
another.
Synovial fluid
Select one:
a. lacks cells.
b. is found between all bony junctions.
c. increases friction between bones.
d. is produced by articular cartilage.
e. decreases friction between bones. - Correct Ans-e. decreases friction between
bones.
This is the dermal layer closest to the epidermis.
Select one:
a. epidermis
b. reticular layer
c. papillary layer
d. stretch marks
e. hypodermis - Correct Ans-c. papillary layer
Which of the following is not a characteristic of age-related changes at the tissue level?
Select one:
a. arterial walls become less elastic
b. injuries heal rapidly and more completely in older people
c. reduced flexibility and elasticity of connective tissue
d. development of atherosclerosis
e. rate of red blood cell synthesis declines - Correct Ans-b. injuries heal rapidly and
more completely in older people
The actual genetic constitution of an individual is its
Select one:
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