The actin cytoskeleton is associated with which type of cell movement?
A. movement of cilia
B. ameboid crawling
C. transport of organelles within a cell
D. Answers b and c are both correct.
D
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Chemical cues that help guide a developing pollen tube toward an ovule are released by the ____.
a. antipodal cells b. synergids c. egg d. central cell e. sperm
A suspect's guilt seems highly likely when a very rare combination of markers is
A) found in the population the suspect comes from and at the crime scene. B) not found in the population the suspect comes from, but present at the crime scene. C) found in the suspect's DNA but not at the crime scene or in the population the suspect comes from. D) found in the population the suspect comes from, in the suspect's DNA, and at the crime scene.
The American kangaroo rat is characteristic of the desert biome. Indicate whether the statement is true or false
Which of the following processes is one of sexual reproduction?
a. fission b. fertilization c. budding d. fragmentation