Water moves (select all correct choices):
A. from regions of high water concentration to
regions of low water concentration.
B. from regions of low water concentration to
regions of high water concentration.
C. from regions of high solute concentration
to regions of low solute concentration.
D. from regions of low solute concentration to
regions of high solute concentration.
E. from regions of low water concentration to
regions of low solute concentration.
A,D
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Which pattern of selection will favor individuals that are on opposite ends of the trait spectrum?
a. Natural b. Mutation c. Directional d. Disruptive e. Stabilizing
For each pound of shrimp caught in the American fishery, how many pounds of other fish are discarded from the catch?
a. 2 pounds. b. 5 pounds. c. 10 pounds. d. 15 pounds. e. 25 pounds.
The principle of independent assortment states that:
1.One allele is always dominant to another. 2.Hereditary units from the male and female parents are blended in the offspring. 3.The two hereditary units that influence a certain trait segregate during gamete formation. 4.Each hereditary unit on one chromosome is inherited separately from hereditary units on other chromosomes. 5.Genes on the same chromosome travel separately.
Normal microbiota are responsible for all of the following except
A) helping us digest foods. B) impacting our moods and brain functions. C) producing vitamins for us. D) training our immune system. E) controlling epigenetic expression.