A scientist studying a large population of a particular species of bird concludes that monarch butterflies are toxic to that bird species.
However, upon studying a second, smaller population of the same bird
species, he discovers that the second population is able to eat monarchs
without becoming sick. How could the scientist best explain his findings?
A. The larger bird population has a small gene pool.
B. Monarchs are only toxic if eaten in large quantities.
C. Genetic drift has occurred in the smaller population.
D. Natural selection has increased populations of non-toxic butterflies.

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)

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

Which food could be transported in a galvanized metal container?