Apopulation of red squirrelfish breeds and produce offspring, 75% are still red but 25% are yellow. this variation in the color of the squirrelfish can be explained bya)the presence of a mutagen in the environment that caused a color change.
b. the rapid disappearance of the allele for red color in the fish population.
c. the presence of a recessive allele for yellow color that was masked by a dominant red color allele.
d. the presence of an inhibitor protein that did not allow the allele for yellow color to produce visible results.

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards.the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.