What is the name for a symptom of viral disease in plants that causes decreased cell growth in leaves?
a. cell necrosis
b. hyperplasia
c. hypoplasia
d. galls
c. hypoplasia
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Which of the following statements is false regarding phagocytosis?
A) It involves ingestion of large particles by the cell. B) It involves the projection of pseudopodia. C) It is a method used predominantly by amoeba to obtain food. D) It is mediated by clathrin at the plasma membrane. E) In vertebrates, macrophages and neutrophils possess this ability.
Peahens prefer to mate with peacocks that have the brightest and largest tail displays. The peacock’s tail is a
disadvantage to the males, because it is large and cumbersome and hinders them from escaping from predators. Given these facts, why isn’t the peacock’s tail selected against by natural selection?
a. peacocks lack the mutations to allow selection to work b. only a few peacocks have large tail displays c. in spite of the disadvantage, peacocks with larger tails leave more offspring d. it is selected against, but because a peahen gives birth to so many males, the population is not greatly affected e. peacocks do not reproduce sexually
The first close human relative known to have dispersed out of Africa was ________. [two words]
Fill in the blank(s) with correct word
All mutations are harmful to the cell.
Answer the following statement true (T) or false (F)