They decrease because the zebra mussel were taking their resources. Leaving them nothing to eat.
Answer:
This means that only 1.5% of human DNA has amino acids
Answer: B
Explanation: Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.
A housekeeper I think , that's the answer