You have three groups of guinea pigs, ones from inbred strain A, ones from inbred strain B and guinea pigs that are the F1 progeny of matings between A and B guinea pigs. All guinea pigs are infected with a newly-evolved version of LCM virus. TC cells from an F1 hybrid guinea pig could attack infected cells from .

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 would happen if the krill were removed from the food web

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?