The beginning of the Cambrian Period is marked by the evolution of hard body parts such as calcium carbonate shells. ... These body parts fossilize more easily than soft tissues, and thus the fossil record becomes much more complete after their appearance.

3 0

2 years ago

Why does the western coast of the United States have<br> moderate temperatures all year-round?

zvonat [6]

Placement on the equator

3 0

3 years ago

6. The total mass of living tissue at each trophic level

Dimas [21]

Answer:

Explanation:

a. refers to amount of energy passed upwards to each trophic level

b. only counts number of each organism

c. counts total mass of living tissue

d. i'm not familiar with but doesn't look right

8 0

3 years ago

I need help please help i will give brainliest

Anna [14]

Answer:

Explanation: ok

6 0

3 years ago

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