Levels of ultraviolet light influence both folate and vitamin D production in humans
Indicate whether the statement is true or false
TRUE
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Evolution, viewed on a small scale, as it relates to changes in a single gene or allele frequency in a population over time, is called
A. macroevolution. B. speciation. C. genetic evolution. D. phenotypic evolution. E. microevolution.
Which statement is TRUE of the behavior of
chromosomes in mitosis? a. Each new cell receives half of the number of chromosomes in the original cell. b. Each new cell receives copies of all the original chromosomes. c. If the original number of chromosomes was 46, each new cell will have 23. d. The sister chromosomes are not identical due to breakages in the DNA. e. All chromosomes are duplicated except the sex chromosomes.
The maintenance of a high ATP to ADP ratio within cells ensures that the:a
hydrolysis of ADP to ATP will be strongly exergonic. b. hydrolysis of ATP to ADP will be strongly exergonic. c. hydrolysis of ATP to ADP will be strongly endergonic. d. hydrolysis of ADP to ATP will be an energy releasing reaction. e. conversion of ADP to ATP will proceed spontaneously.
Some animal populations are kept in check by
A. hosts. B. decomposers. C. amensalism. D. predators.