What is an effect of continental drift on biological species?
a. It results in mass extinctions.
b. Over time, an organism adapted to a particular climate may find it difficult to survive in the climate change associated with continental drift.
c. Continental drift led to the evolution of humans.
d. Continental drift limits our view of natural selection.
e. It limits diversification of biological species.
Ans: b. Over time, an organism adapted to a particular climate may find it difficult to survive in the climate change associated with continental drift.
You might also like to view...
What factor allows the dominant mutant allele for Huntington's disease to persist in human populations
despite its devastating effects? a. Heterozygote advantage. b. The fact that its symptoms do not typically show until after the individual has had children. c. Its effects are not expressed in heterozygous individuals. d. Its effects are only expressed in homozygous recessive individuals. e. Its effects are only expressed in homozygous dominant individuals
Scientific theories _____
A) are nearly the same things as hypotheses B) are supported by, and make sense of, many observations C) cannot be tested because the described events occurred only once D) are predictions of future events
After proofreading repair enzymes check the work of DNA polymerase, newly replicated DNA strands contain about one mistake for every
A) 10,000 to 1 million base pairs. B) 100 to 1,000 base pairs. C) 1 million to 10 million base pairs. D) 1 to 100 base pairs. E) 100 million to 10 billion base pairs.
Which of the following is not a reason we become shorter as we age?
a. As a person ages, the intervertebral discs become thinner and the vertebrae will be stacked closer together, resulting in shorter stature. b. As a person ages, vertebral bodies lose bone mass (osteoporosis) resulting in smaller vertebrae that stack closer together. c. As a person ages, scoliosis may develop resulting in an abnormal spinal curvature and shorter stature. d. As a person ages, the ligaments connecting vertebrae together are weakened, resulting in a more pronounced kyphosis. This posterior curvature of the spine lowers the skull, making you shorter.