Which eras ended with a mass extinction?

O A. Paleozoic and Precambrian

O B. Mesozoic and Paleozoic

OC. Mesozoic and Cenozoic

O D. Cenozoic and Paleozoic

Explain what would happen to the salmon's cells if this process did not occur.

Which part (s) of the ear changes sound to signals the brain can understand? outer ear inner ear middle ear and outer ear middle ear and inner ear

Importance of cell membrene

What characteristic is common to both unicellular and multicellular algae?

What is not true about the earliest fossil evidence found for a multi-cellular animal? It was found in South Japan It is dated from about 605-600 million years ago The fossils had parts of sponges and cnidarians It is from the Edicaran Period

Which traight was important in the advancement of modern fish

The atoms surrounding an edge dislocation experience what kind (s) of strain (s) ?

How is water conserved on a space station?

Where are dunes most commonly located, country and state, not environment.

Which of the following is not associated with the stomach? a. alcohol absorption b. gastric glands c. duodenum d. pepsin?