It can be said that the energy we obtain from foods comes from the sun. this is because:

Solar radiation travels through the earth's atmosphere and warms the planet's surface. greenhouse gases like carbon dioxide in the earth's atmosphere reabsorb the heat and warm the planet.

What is responsible for the peristalsis that occurs in the digestive tract?

in sickle-cell disease variation is one gene cause red blood cells to bend or sickle this means the sickle cells

What may happen to an ecosystem of all primary consumers were removed

In girls, the onset of puberty brings the lowering of the voice at approximately age ___.

How many chromosomes do humans have?

Pairing of homologous chromosomes in prophase of meiosis I appears to be critical for proper alignment, crossing over, and subsequent separation. This pairing is facilitated by the sharing of sequence homology between homologous chromosomes.

What does "leeward" mean?

Which lipid acts as a chemical messenger? a. adipose tissue b. cholesterol c. testosterone d. beeswax

The degradation of alanine yields pyruvate and the degradation of leucine yields acetyl coa. can the degradation of each of these amino acids directly replenish the pool of tca intermediates? explain why or why not.