When an atom gains an electron it
a) loses mass
b) is electrically neutral
c) becomes positively charged
d) becomes negatively charged

Abnormal softening of a gland is known as

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

Which best describes somatic mutations? they are usually passed on to offspring. they can cause different kinds of cancer. they always result from point mutations. they only occur in reproductive cell