Which statement is true?
a. The anterior pituitary gland is essentially nervous tissue.
b. The anterior pituitary gland secretes only two hormones.
c. Only the posterior part of the pituitary gland could be called the "master gland."
d. The posterior pituitary gland only stores hormones produced by the hypothalamus.
e. The anterior pituitary gland is conencted to the hpothalamus via the infindibulum.
D
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Some protists use multiple fission (cell division preceded by several nuclear divisions) as a means of reproduction. Multiple fission is also referred to as
A. budding. B. zygotic meiosis. C. schizogony. D. syngamy. E. intermediary meiosis.
Which of the following provides the basis for Mendel’s laws of segregation and independent assortment?
a. Meiosis I b. Meiosis II c. Interkinesis d. Cytokinesis
The transfer of electrons from glucose to oxygen during aerobic respiration takes place in a stepwise
fashion through a number of intermediates rather than by direct transfer. This is because:a. it is chemically impossible to transfer electrons directly from glucose to oxygen. b. the chemical intermediates donate some of their electrons in order to increase the electron pool. c. the energy of the electrons can be used to make ADP. d. the energy of the electrons can be used to make ATP. e. the energy of the protons can be used to make ATP.
Which statement about egg development is true?
A) Eggs without a nucleus cannot initiate division. B) A second messenger system is activated following fertilization. C) The sperm and egg micronuclei have fused by the end of the cortical reaction. D) The contents of the cortical granules contribute to the fast block to polyspermy. E) The mRNA involved with early activation of the egg arises from the sperm nucleus.