Thirty miles above the surface temperatures and pressure are similar to that on earth. clouds at this altitude make contain what type of life? a. bacteria
b. viruses
c. single-felled fungi

(can select more than one)

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

How water is moving through the ecosystem ?

How are fossils used to date organisms?