Natural selection acts on a population to produce individual organisms with different adaptations. Which is true about these adaptations? A)These adaptations are designed so every organism will be perfectly adapted to its environment B)The usefulness of these adaptations is tested by interactions in the surrounding environment. C)These adaptations are useful to every organism and their descendants in the any environment D)The usefulness of these adaptations is reduced by interactions in the surrounding environment

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)

Name the part of the the brain labeled "e".

What is the difference between an igneous, sedimentary and metamorphic rock