If earthworms ingest sediment and extract food particles from soil, then earthworms ingest sediment and extract what from soil? Answer choices: - Organic compounds - harmful substances - Energy. - food ingredients - h2o - bioaerosols - food particles - carbon
food particles

If specialization occurs when competing species evolve techniques to accomodate differences, then specialization occurs when competing species evolve techniques to what? Answer choices: - Animal survival - get hurt - It helps them survive - save accommodations - protect plants - accommodate differences - refract or absorb. - see differences
accommodate differences

If coal can power a light bulb, then what can power a light bulb? Answer choices: - copper - coal - Cars - Gas - motors - heat - energy - metal
coal