Two species are having their DNA analyzed to determine if they share a common ancestor, if they are closely related. One scientists compares the amino acids produced by the two species. The other scientists compares the DNA sequence between the two species. The DNA sequence between the two species shows a
greater variance than the amino acids. Which of the following is the most likely explanation for these results?
A) some variances in amino acids cannot be detected
B) some genes are not expressed creating greater variances in the DNA
C) there exists only 4 DNA bases compared to 20 different amino acids
D) several different DNA triplet sequences can code for the same amino acid

Plzzz hurry im being timed ! humans, like other organisms, require energy for growth and repair. when cells create atp for energy, carbon dioxide is produced as a waste product. how does the body respond to this process in order to maintain homeostasis? a. the digestive and respiratory systems interact to move carbon dioxide to the lower intestine, where it is transformed into methane. b. the circulatory and digestive systems interact to move carbon dioxide to the stomach, where it to break down food. c. the nervous and urinary systems interact to move carbon dioxide to the kidneys, where it is absorbed into the bloodstream. d. the circulatory and respiratory systems interact to transport carbon dioxide to the lungs, where it is expelled from the body.

Are substances released into the environment that in excess amounts cause damage

If vegetable oil is made out of veggies, then what is baby oil made out of?