What is the usefulness of
categorizing Earth's history
into the geologic time scale?

CO
Ecosystem productivity is principally limited by
a. sunlight and nutrient availability
b. water and nutrient availability
the availability of time and nutrients
d. none of the above
C.
Please select the best answer from the choices provided
A
B

A. Write two sentences explaining how carbon returns from the air to the ground. ​

The neurons that send signals from the brain to the body muscles are motor neurons
true or false ​

No matter what phase water is in, the water molecules stay the same; they just move differently.”
Explain why this evidence matters:

Look at the diagram.
Which two structures are first to combine in translation?
20004
• 1 and 2
• 3 and 4
• 2 and 3
• 1 and 4

Study the image, and then choose the statement that best describes the image.

Rocks are made of collections of mineral grains that are held together in a firm, solid mass. Rocks are identified primarily by the minerals they contain, their color, and their texture.

Based on this passage, you can infer...

A. Rocks are classified into three major groups
B. Rocks form from the cooling and hardening of molten rock
C. A rock's origin is the way it was formed
D. Each type of rock has a distinctive set of minerals

OMG PLSSS HELP ME PLS PLS PLS!!!!!!!

The diversity of dogs today can be attributed to selective breeding,
O True
O False

Due to sun damage, a skin cell acquired a mutation in DNA sequence in a gene essential for cell survival. This mutation, however, was not passed on to the offspring of the organism. Which explanation best accounts for this observation?

please help

9. why Energy released by aerobic and anaerobic respiration in animal are not same.​