Material cycling

Question 1

What do atoms exist as ?

Answer 1

Parts of different compounds

Question 2

What do these atoms do?

Answer 2

Cycle through the biotic and non-biotic parts of an ecosystem

Question 3

What is cycling seen in?

Answer 3

Carbon, nitrogen and the compound water

Question 4

What is the first step during this process?

Answer 4

Nitrogen in soil is absorbed by plants which is eaten by the animals

Question 5

What is the second step?

Answer 5

Animals produce this nitrogen excretion and egestion

Question 6

Which is the third step?

Answer 6

animals die and are broken down by bacteria and are absorbed back into the soil

Question 7

What do our bodies break proteins down too?

Answer 7

Amino acids and then they make proteins in our bodies- then we die and are broken into the amino acid building blocks and returned to the soil.

Question 8

What do microorganisms do when they break down dead matter?

Answer 8

They respire which contributes to the carbon cycle