Þ. Which statement best explains why the mitosis model on the previous page is incomplete in regards to the number of chromosomes?
A. Human cells should have more chromosomes than the model illustrates.
B. The daughter cells should have more chromosomes than the parent cell.
C. During mitosis, chromosomes will replicate three times before the parent cell divides.
D. The daughter cell chromosomes are different than the parent cell

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.

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.