Which of the following is the best description for Epistasis? A. Two alleles keeping each other in equilibrium.
B. A recessive allele that controls the expression of a dominant allele in a different trait.
C. A state of being very close to equilibrium, but not quite there.
D. When two dominant alleles are present and are both expressed equally.

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

What is responsible for the uneven heating between the poles and the equator on any given day