You have been growing some animal cells in culture. the cells grow well for several weeks and then their growth slows down. you conduct some tests and determine that there is a lot of lactic acid in the culture fluid. which of the following is the most likely explanation for the poor growth of the cells?

a) there is too much glucose in the culture fluid.
b) there is not enough glucose in the culture fluid.
c) there is too much oxygen in the culture fluid.
d) there is not enough oxygen in the culture fluid.

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Considering the yellow and green pea color phenotypes studied by gregor mendel: a. what is the biochemical function of the protein that is specified by the gene responsible for the pea color phenotype? (1 point) b. a null allele of a gene is an allele that does not specify (or encode) any of the biochemical function that the gene normally provides (in other words, either no protein at all or only non-functional protein is produced from it). of the two alleles, y and y, which is more likely to be a null allele? (1 point) c. in terms of the underlying biochemistry, why is the y allele dominant to the y allele? (2 points) d. why are peas that are yy homozygotes green? (1 point) e. the amount of protein produced from a gene is roughly proportional to the number of functional copies of the gene carried by a cell or individual. what do the phenotypes of yy homozygotes, yy heterozygotes, and yy homozygotes tell us about the amount of sgr enzyme needed to produce a yellow color? explain your reasoning. (2 points)

What best describes the dropping height of a ball that bounces back up to a height of 45 cm