The measure of how well your heart gets oxygen-rich blood to your muscles while you're exercising is called aerobic fitness.
Due to there being no answer choices I can only really give an example.
The non-living parts of an ecosystem are called abiotic factor, so Sunlight, temperature, atmospheric gases, water and soil, Biotic factors are living, so a interaction is with plants, plants require sunlight, soil, water, and CO2 to make food.
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I believe the answer is D, role discontinuity
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Coud you translate that to engish or french please?