45. what is thought to be true about the three domains of living things?
a.
they diverged from a common ancestor fairly recently.
b.
they diverged from a common ancestor before the evolution of the main groups of eukaryotes.
c.
they did not have a common ancestor.
d.
domains bacteria and archaea evolved after the main groups of eukaryotes.

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.

answer; blank(1); cervical; blank(2); lumbosacral;