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They can respond to changes in their environment which the answer is
D. Mollusks and arthropods can respond to changes in their environment, while jellyfish and sponges cannot.
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Answer:
Nucleus because it contains the dna and controls the activities of the cell.
Answer:
Nitrate and phosphate levels rise at a rapid rate
Excessive Plant growth and algal blooms cover the surface of the pond, blocking out sunlight.
Underwater plants begin to die due to lack of photosynthesis, which reduces the amount of dissolved oxygen in the water. Animals also begin to die due to less plants available for food.
Explanation:
The answer to your question is C!