The cell in micrograph "III" is at which stage
of the cell cycle?
a. prophase
b. telophase
c. interphase
d. anaphase
e. metaphase
D
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The act of nursing stimulates the contraction of smooth muscle cells in the breast. If a newborn infant is unable to nurse, then
A. progesterone secretion is not inhibited. B. milk is not produced. C. oxytocin is not secreted. D. prolactin is not secreted. E. prostaglandins are not secreted.
Heavy metals work by
A. inactivating proteins. B. binding to DNA. C. mutating DNA. D. dissolving the cell wall. E. rupturing the cell membrane.
In plant leaves, what are the tiny pores that allow carbon dioxide to enter and oxygen to exit?
What will be an ideal response?
Frog-eating bats locate their prey by ______.
A. detecting frog pheromones B. marking frog habitats using secretions C. light emitted by the frogs' signaling cells D. imitating the frog's mating call E. listening for the frog's mating call