Q: What process is the opposite of nitrogen fixation? Choices: - digestion - respiration - percolation - denitrification A:
denitrification

(Question)
Q: What is the name of the protein that is found in hairs and nails? Choices: - cellulose - chromatin - Skin - keratin A:
(Answer)
keratin

Ques: Q: How often does condensation occur in your cells? Choices: - weekly - daily - never - constantly A:
Ans: constantly

(Q).
Q: Which property changes when a glass breaks? Choices: - State - Chemical - density - its physical property A:
(A).
its physical property

Ques:Q: What term is used to describe a simple diagram that shows one way energy flows through an ecosystem? Choices: - water cycle - food pyramid - fuel chain - food chain A:

Ans:food chain

Ques: Q: What happens to cells in a hypertonic solution as water leaves the cell via osmosis? Choices: - get larger - evaporation - self destruction - shrinkage A:
Ans:
shrinkage