In 1973, biologist Theodosius Dobzhansky wrote an essay titled "Nothing in Biology Makes Sense Except in the Light of Evolution." Why is evolution so important for understanding biology? Explain your answer in 1-2 sentences. (2 points)

Evolution provides a framework for understanding why organisms have the physical, physiological, and behavioral traits that they do. Without evolution there would be no explanation for the existence of any of these things.

d. in sexual reproduction, offspring have more chromosomes than

either parent.

asexual reproduction results in offspring which are genetically the same as the parent organism (not counting a rare mutation). sexual reproduction produces a random mixture of the genetics derived from both parents

explanation:

the sphincter muscles at the end of the digestive tract is the anus.