Which option identifies the most likely testable question in the following scenario? One thousand mice are separated into two groups. Five hundred are given an artificial sweetener, aspartame, in their food. The other five hundred are given the same food without the artificial sweetener added. Once a week for six months, the mice in both groups are weighed.

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.