What is an index fossil A.) is a list of all fossils found in a particular layer of rock.

B.) is a fossil that is found in many locations over a large area, and is from a species that did not exist fora long period of time.

C.) is a particular fossil of an organism that is related to all other organisms.

D.) None of the above.

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

The pressurized plants and fungi mentioned in the video have some surprising similarities. what differences would you expect them to have?

Genes that come together with different alleles are heterozygous. homozygous. genotype. segregated.