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Ecosystems
Ecosystems flashcards
| Term | Definition |
|---|---|
| What is an organism? | a living thing (like a plant or animal) |
| Something in the environment that is not alive is called a _______________. | nonliving factor |
| All of the organisms and nonliving factors interacting in a certain area make up a/an _________________. | ecosystem |
| All of the sloths that live in the same rainforest are an example of a _______________. | population |
| What is a community? | all of the different populations of species living in one place at the same time |
| What is a habitat? | the place where an organism lives |
| What are some things that a habitat provides? | food, water, shelter, and space |
| What does the size of an organisms's habitat depends on? | the organism's needs |
| Each organism has its own role in the ecosystem. This is known as its _________. | niche |
| How many kinds of organisms can share the exact same niche? | None. Every species has its own unique niche. |
| When does an organism's niche change? | An organisms's niche changes as it moves through its life cycle. |
| What are two main ways that populations interact in a community? | They compete (for resources, mates, etc.) and they cooperate to meet basic needs. |
| What passes from one organism to another in a community? | energy |
| What does a food chain show? | A food chain shows the flow of energy in a community. |
| What do the arrows in a food chain point to? | the organisms doing the eating (or getting the energy) |
| What are the basic parts of a food chain (in order)? | the sun, producer, consumer, decomposer |
| Where do all ecosystems first get their energy? | the sun |
| A _____________ is a plant that uses energy from the sun to make its own food. | producer |
| What is a consumer? | An animal that gets its energy by eating other animals and/or plants |
| What part of the food chain does a mushroom represent? | a decomposer |
| Why are decomposers important in an ecosystem? | Decomposers break down plants and dead animals, returning energy to the earth. |
| How is a food web different than a food chain? | A food web shows how many different food chains are connected. |
| If something happens to one organism in a food web, it might affect the rest because they are all ____________________. | interconnected |
| What is a dichotomous key used for? | It helps us classify organisms based on their physical characteristics. |
Created by:
albrooks