Which of the following statements is false?
a. There are more than 1,000 chromosomes found in some organisms.
b. The more highly evolved a species is, the more chromosomes it possesses.
c., The number of chromosomes remains constant throughout a life cycle.
d. The number of chromosomes is the same for all members of a species.
e. There are half as many chromosomes in germ cells as there are in somatic cells
Ans: b. The more highly evolved a species is, the more chromosomes it possesses.
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The collapse of the western Atlantic cod fishery is blamed on which of the following?
a. Overharvesting b. Climate change c. Invasive species d. Habitat loss
Ventilation _________ involves breathing air into the lungs call and breathing air out of the lungs called expiration.
Fill in the blank(s) with the appropriate word(s).
In cell division, toward the end of nuclear division, the cytoplasm divides by a process called
______________ to produce two identical cells. What will be an ideal response?
Genetic drift arises from all the following EXCEPT ________
A) a small breeding population B) a founder effect C) a genetic bottleneck D) mutations