Tissues derived from mesoderm are absent in
a. sponges.
b. cnidarians.
c. flatworms.
d. sponges and cnidarians.
e. sponges, cnidarians, and flatworms.
Answer: d
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Knowing the sequence of a genome is useful in
A. identifying genetic alterations associated with disease. B. studying evolutionary relationships. C. determining protein sequences. D. All of the choices are correct.
When ATP levels exceed the needs of the body, the body uses the ATP and excess glucose to produce glycogen. Where is the glycogen stored?
a. fat tissue b. stomach and small intestines c. liver and skeletal muscle d. beneath the skin
The interaction of two or more polypeptide chains in a hemoglobin molecule is its ____ structure
a. primary b. secondary c. tertiary d. quaternary e. combined
Before entering the Krebs cycle, pyruvate is converted to
What will be an ideal response?