Both of them have a shell with a living organisms with the valves and they both are form somewhere different
Answer:
Intrusive rocks are coarse-grained in texture and crystallise slowly from magma deep in the earth's crust. Extrusive rocks are fine-grained in texture and crystallise quickly from lava on or near the earth's surface. The mineralogy determines the type of rock.
Orientation behaviors usually determine the type of environment that an animal will prefer to live. Animal orientation behavior is a complex process which determine how an animal receives information from the external world and how it responds to it.
Answer:
Type B stars
Explanation:
type B stars are the hottest, so they would burn up more quickly, spending the least amount of time on the main sequence.