Why did mendel continue some of his experiments to the f₂ or f₃ generation?
a) to obtain a larger number of offspring on which to base statistics
b) to observe whether or not a recessive trait would reappear
c) to observe whether or not the dominant trait would reappear
d) to distinguish which alleles were segregating
e) to be able to describe the frequency of recombination

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.