9. Which of the following statements describes the data in Figure 1? a. An increase in sea urchin which of the following statements describe the data in figure 1?

a. an increase in sea urchin biomass is associated with more intense grazing.

b. An increase in sea urchin biomass is associated with greater kelp density.

C. Predation of sea otters by killer whales is associated with greater kelp density.

d. Sea otter abundance was relatively stable from 1972 to 1997.

A. an increase in sea urchin biomass is associated with more intense grazing.

explanation:

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.