6. A species of a squirrel has twenty chromosomes in each gamete (egg and sperm cell). A muscle cell in this squirrel would have how many chromosomes?
a. 60 chromosomes
b. 20 chromosomes
c. 40 chromosomes
d. 80 chromosomes

Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation.c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation.d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

In which layer do organisms on earth love?