Answer:
D. ususally very abundant in an ecosystem
Explanation:
Most commercial phosphorus is produced by mining and heating calcium phosphate. Phosphorus is the eleventh most abundant element in the Earth's crust
Answer:
B. centrioles
Explanation:
Plant cells have cell walls, cell membranes and also contain mitochondria along the chloroplasts.
Really high temperatures cause the enzyme to denature.
Answer:
B
Explanation:
Protein synthesis occurs in the cytoplasm on ribonucleoprotein particles, the ribosomes.
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