What is a living thing that can't make its own food and must eat other living things?

What is an environment that meets the needs of an organism?

What is the main source of energy for ecosystems?

What term describes a living part of an ecosystem, such as plants and animals?

What is a group of food chains that overlap called?

What is the term for non-living components of an ecosystem?

What is the process by which plants convert sunlight into energy?