Cytoplasmic division in animal cells involves _____.
A. formation of a cell plate
B. formation of a deepening cleavage furrow
C. the division of sister chromatids
D. the formation of evenly spread cytoskeletal elements under the entire plasma membrane
E. the synthesis of new spindle fibers
Answer: B
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Which conclusion is best supported by these data?
1.Infected children lived in areas with greater numbers of mosquitoes.
2.A higher number of mosquitoes were attracted to children that contained gametocytes.
3.Plasmodium secrete a chemical that mosquitoes can detect in the air.
4.Children without Plasmodium infection were least attractive to mosquitoes.
The ________ model was proposed by Mitchison and Kirschner to explain how polymerization and depolymerization of microtubules occur simultaneously.
Fill in the blank(s) with the appropriate word(s).
In vertebrates, the CNS consists of the
a. brain and spinal cord. b. brain and gray matter. c. spinal cord and gray matter. d. brain and reflexes. e. spinal cord and nerves.
________ is caused by an interference with the blood supply to the brain.
A. Angina pectoris B. A stroke C. Arteriosclerosis D. Atherosclerosis