How do the muscles help in thermoregulation? Muscles produce oil that burns in the presence of oxygen.
O Muscles undergo a chemical reaction that absorbs heat.
Muscles break down carbon dioxide, producing heat.
Muscles contract rapidly, producing heat.

How do you transfer mrna into codons ? i'm so confused : (

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

Which anatomical plane is the only one that could not show both the sternal region and vertebral region