What is the most important role of earthworms, pill bugs, and bacteria in an ecosystem?

If an environment where a population of lizards lives becomes much hotter and drier, how might the lizard population in this area continue to survive?

A lioness has three cubs and one is smaller than the other two and does not get as much to eat during feeding. Why are the larger more likely to reproduce than the smaller one?

What type of diagram shows the available energy at each feeding level in an environment?

Animals that feed on small bits of decaying organisms are called ____________.

What abiotic factor is necessary for reptiles to regulate body heat?

A wildfire burns away all of the grass in an ecosystem. Which of the following explains the effects this will have on the other organisms within the ecosystem?

Due to changes in resources, a typically rainy ecosystem becomes a dry, sunny environment. How will the plant and animal population change?

Which of the following is a biotic factor?

Which of the following is not a producer?

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