Why did gregor mendel use peas in his experiments?
peas grow very slowly.
pea reproduction cannot be controlled.
peas normally produce very few offspring.
peas have characteristics that have two forms.

Scientific thinking: what clues about biology might road kill provide?

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

What is the next step in muscle contraction after the actin changes shape? (apex)