Which layer of bone is known as the "living skin?"* 5 points
Marrow Cavity of bone
Spongy Bone
Compact Bone
Periosteum

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.

d. planting trees

the trees take in carbon to make oxygen.

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.