This vertebrate is a fish, has a cartilaginous
skeleton, no jaws, and a tooth-covered tongue.
This animal is a
a. shark.
b. lamprey.
c. coelacanth.
d. goldfish.
e. more than one of these
B
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Synthetic anabolic steroids:
A. All of the answer options are correct. B. promote protein synthesis. C. promote anabolic metabolism to store energy within cells. D. build and strengthen muscle tissue. E. interfere with the normal production of anterior pituitary tropic hormones.
Answer the following statements true (T) or false (F)
1. Most oncogenes encode proteins that function in cell growth signaling pathways. 2. p53 is a tumor suppressor gene that acts as a sensor of DNA damage. 3. Certain types of cancer are caused by viruses. 4. Sexual life cycles include both haploid and diploid stages.
Explain the process of feedback inhibition. What role do allosteric regulators play in this process? What will be an ideal response?
Nuclear ______ are specialized holes in the ________-layered nuclear envelope that separates the nucleus from the ___________.
A) passageways; one; cytoplasm B) vesicles; three; endoplasmic reticulum C) pores; two; cytoplasm D) pores; one; endoplasmic reticulum E) vesicles; two; cytoplasm