The process of forming an internal vesicle and releasing it from the cell is called
A. endocytosis
B. exocytosis
Answer: B. exocytosis
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The term polymorphism refers to the phenomenon that a trait displays variation within a population. Which of the following is an example of polymorphic trait in a population?
A. The A, B, O blood types found in humans. B. The loss of hair in elderly animals that are malnourished. C. The pink or white flowers of the four o'clock flower, both pink and white individuals are prevalent. D. Both the A,B,O blood types in humans and the pink and white flowers of the four o'clocks. E. Both the A,B,O blood types in humans and the loss of hair in elderly animals that are malnourished.
In a certain bird species, clutch size (the number of eggs laid by a female in one breeding season) ranges from four to eight, and the most frequent clutch size is six. This phenomenon is an example of
a. sexual selection. b. stabilizing selection. c. disruptive selection. d. directional selection. e. artificial selection.
Growth of long bones
a. follows the cartilage model. b. occurs in the middle at first, then at both ends. c. is characterized by bone tissue replacing calcified cartilage. d. is characterized by the persistence of cartilage at both ends of the bone. e. includes all of these.
using microbes to clean up and decontaminate toxic waste, chemical spills or oil spills is
What will be an ideal response?