What is the benefit of adhesion of water to sediment?
a. It allows for an increase of oxygen in sediments
b. It provides protection from capillary action.
c. It allows organisms to build habitats from sticky sediments.
d. It allows microscopic organisms to live in the small spaces between sediment particles.
d
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What do you know about the interaction between Ras and SOS? What other information is related to the question?
What will be an ideal response?
The molecule that fits into the active site of an enzyme and reacts with the enzyme is
A. always a carbohydrate. B. an analog. C. always a protein. D. always broken down by the enzyme. E. a substrate.
The reason that linked genes are inherited together is that
A) they are located on the same chromosome. B) the number of genes in a cell is greater than the number of chromosomes. C) chromosomes are unbreakable. D) alleles are paired. E) genes align that way during metaphase I.
Choose a pair that correctly associates the mechanism for osmoregulation or nitrogen removal with the appropriate animal
A) metanephridium — flatworm B) Malpighian tubule — frog C) flame bulb — snake D) exchange across the body surface — marine invertebrate