I have to do online research on an endangered or impacted species in my area. I chose the spotted dusky salamander. Here are the questions: 1- describe the natural environment of the species in terms of abiotic and biotic factors.

2- describe the biome in which the species lives and the properties of the biome.

3-if humans have altered the natural environment, describe the changes made by humans and their impact on the species.

4-choose from three types of scientific workers (biologists, chemists, and geographer’s) that you think could help solve the problems associated with this species, and explain how they could apply their knowledge.

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)

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.

Which are reasons cells undergo cell division?