Natural selection is often described with the phrase "survival of the fittest." From the examples in this tutorial

and the variations you see in organisms around you, why do you think the phrase uses "fittest" rather than

strongest, brightest, or largest?

Because fittest is not used to mean strongest, brightest, or largest. Fittest means most or best adapted. So organisms who are most or best adapted survive. Hope this helps!

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set