Which of the following statements is NOT true?
a. Cellular division is one example of cloning.
b. Cloning may involve nuclear transplantation.
c. In whole animal cloning the cells need to revert to the pluripotent state
d. All of these are true.
e. None of these are true.
D
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The nurse cells of the seminiferous tubules do all of the following except
A) maintain the blood testis barrier. B) support spermiogenesis. C) secrete inhibin. D) secrete testosterone. E) secrete androgen-binding protein.
During excitation-contraction coupling,
a. the action potential travels down the T tubules b. Ca2+ is released from the sarcoplasmic reticulum c. Ca2+ is taken up by the sarcoplasmic reticulum d. both a and b occur e. both a and c occur
Body parts that are described as medial are considered to be:
A) toward the front. B) closer to the midline of the body. C) toward the head. D) closer to the point of origin.
Cardiovascular centers located in the ________ adjust the heart rate, the strength of cardiac contractions, and the flow of blood through the peripheral tissues
A) pons B) medulla oblongata C) prefrontal cortex D) thalamus E) midbrain