stuff i ended up missing out

Question 1

aerobe is what?

Answer 1

organisms that must have oxygen to respire

Question 2

anaerobe is what?

Answer 2

organisms that don’t need much oxygen

Question 3

Saprophytic bacteria and fungi do what?

Answer 3

decompose organic matter forming humus. It is important in nutrient cycles

Question 4

What do earthworms do?

Answer 4

• improve aeration and drainage by burrowing.
• Improve fertility by adding humus (pull leaf litter into burrows, excrete waste, decompose when dead)
• Bring leached minerals into upper layers
• Grind coarse soil particles in gizzard