If the left semilunar valve were blocked, where would blood accumulate?

A. right atrium
B. left ventricle
C. left atrium
D. lungs
E. right ventricle


Answer: B

Biology & Microbiology

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Which marine zone supports kelp forests?

a. the pelagic province b. the benthic province c. the neritic zone d. the abyssal zone e. the intertidal zone

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Many parasitic flatworms have an intermediate host. This indicates that the

A. flatworms cannot infect human B. larval flatworms infect one species, where as adults infect another species C. larval flatworms infect only juveniles of a species D. flatworm adults are microscopic E. flatworm larvae are parasitic on their parents

Biology & Microbiology

Since the allele for colorblindness is located on the X chromosome, colorblindness

A.) cannot be inherited. B.) occurs only in females. c.) is sex-linked. d.) occurs only in adults.

Biology & Microbiology

A cell is called ________ if it has the ability to form any body tissue or even an adult animal.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology