When you have completed this lesson, you should be able to: distinguish between different types of mutations explain why mutations may or may not affect phenotype identify internal and external factors that regulate cell division explain cancer in terms of the cell cycle construct an explanation and defend a claim based on evidence.

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

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Amniocentesis is a process in which amniotic fluid is taken from the mother's womb to identify any genetic abnormalities in the fetus. how would the discovery of the human genome contribute to this process?