The cell nucleus acts like the brain of the cell. It helps control eating, movement, and reproduction. It contains the genetic material and controls the function of the cell.
Answer: B Co-dominant alleles
Explanation: The coat of a roan cow consists of both red and white because the two alleles are codominant. Codominance occurs when two alleles outwardly express themselves equally. In codominance, neither of the allele is completely dominant rather they are equally dominant. None is able to mask the effect of the other. The two alleles express themselves equally in the phenotype of the organism. This means that in a roan cow, the allele for white fur is dominant and the allele for red fur is equally dominant, thus they manifested equally as a mixture of both red and white furs.
Answer
For the first one it's a
For the second it's d
for the third it's d
The explanation is in the picture
The answer is atria; ventricles. The right atria receive blood from the superior vena cava that brings deoxygenated blood from systemic circulation. The right ventricle pumps blood via the pulmonary artery that takes blood to the lungs for oxygenation. The left atria receives oxygenated blood from the lungs. The left ventricle pumps the oxygenated blood to the systemic circulation via the aorta.
