___________________ increases the permeability of the collecting duct in the nephron to water.
A. Anti-diuretic hormone (ADH)
B. Aldosterone
C. Atrial natriuretic hormone
D. Angiotensin II
Ans: A. Anti-diuretic hormone (ADH)
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Most bacterial phyla lack strong phenotypic cohesiveness
Indicate whether the statement is true or false.
You are a botanist living in the desert. A friend
asks you which of the following plants would be most practical to plant in their yard. What is your answer?
a. all plants will do equally well b. any plant as long as it is a C3 plant c. any plant as long as it is a C4 plant d. any plant as long as it is a CAM plant e. either a C3 or C4 plant
The size of a plant's seeds reflects an evolutionary trade-off. Large, heavy seeds contain ample nutrients to fuel seedling growth but may not travel far. In contrast, small seeds store limited nutrients but disperse far and wide. Human-cultivated crops typically have larger seeds than do their wild ancestors. How has human farming altered the evolution of these crops?
A. We grow the plants under conditions that favor the growth of larger seeds. B. By using fertilizers, the seeds do not need to store as many nutrients. C. We have created crop plants that are more competitive in the wild than their ancestors. D. Because we spread the seeds, we can spread more smaller seeds per acre, thus favoring these plants. E. We have removed the selection pressure favoring small seed size.
Based on the suffix, a molecule of "maltose" is most likely what type of macromolecule?
A) Carbohydrate B) Lipid C) Protein D) Nucleic acid