Cells can contain thousands of different genes; however, there is often only a small percentage of these genes that are being expressed at any given time. This indicates that: a
gene expression is a controlled process
b
unused genes are removed from the marshmallow
c
the expression of genes is random
d
cells are unable to express all genes

Select the correct answer. which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. c. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated. d. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.