The smaller cell produced by oogenesis meiosis I, called the first polar body, is essentially a packet of discarded nuclear material
Indicate whether the statement is true or false
TRUE
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What is the function of the structure labeled #12?
A) intracellular removal of damaged organelles or pathogens
B) breakdown and recycling of damaged or abnormal intracellular proteins
C) protein synthesis
D) movement of material over cell surface
E) catabolism of fats and other organic compounds
The more actively a tissue is metabolizing, the higher the cellular PO2 rises and the lower the cellular PCO2 falls
a. True b. False Indicate whether the statement is true or false
Cerebrospinal fluid is formed from blood by clusters of capillaries in the brain known as ________
A) choroid plexuses B) arachnoid villi C) ventricles D) sinuses
A hormone may be
A. inactivated by its target cell. B. activated by its target cell. C. inactivated by nontarget cells. D. excreted before it has a chance to act on a target cell. E. All of the choices could be correct.