In a mangrove swamp, mangrove tree crabs consume the leaves of mangroves and are food for other animals. By eating decaying mangrove leaves, animal wastes, and dead animals, they help create detritus that forms the base of many of the swamp's aquatic food chains. In addition, they burrow in the wet soil, which mixes air containing oxygen with the soil. What is likely to happen to the stability of the community if a disease destroys the population of mangrove tree crabs? (1 point) Think about how a community adjusts when one species is negatively affected.

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)

Across of blue x blue (both heterozygous) would result in

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes