7. What is a layout of chromosomes in humans in order from largest to smallest with the sex chromoosomes at the end called?

Look down!!! ;)

Explanation:

In a human karyotype, autosomes or “body chromosomes” (all of the non–sex chromosomes) are generally organized in approximate order of size from largest (chromosome 1) to smallest (chromosome 22). However, chromosome 21 is actually shorter than chromosome 22.

Hope this helps!! ;)

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.