Grade 7 Interactions and Ecosystems (Unit Review)

Which "R" are you practicing when you pass used clothing on to another person?

Algae, perch, and mosquito larvae can be found in a pond. Identify the producer(s).

Without protection for natural habitats, Earth may lose _________________

Some species are at risk of no longer existing. This means that they could become_____________

An orchid attached to a tree is commensalism, a symbiotic relationship. Commensalism means?

What word describes a relationship between two organisms where both benefit from being together

_________________looks at changes in populations of organisms or in organisms themselves

_________________means that resources are being replenished and that wastes are being absorbed.

What are the four basic needs of living things as you decide how to care for your new pet?

Families reduce the amount of garbage by composting. What other activity is like composting?

How can North Americans reduce their ecological footprint?

Clearing forested land for farming often results in a reduction of birds. Why might this occur?

Many of the plants that grow in Hawaii would not survive in Canada. Why?

Whichof the following are examples of abiotic parts of an environment?

___________________are harmful substances released by humans into the environment.

How will cutting down the rain forest affect the air quality?

Which is the most effective way to reduce your ecological footprint?

Bacteria are killing the plants shown in the food web. Which of the following is true.

Plants use ____________________ to make food and release __________________ to the environment.

Many forests burn and then regrow after, what term best describes this?

A species becomes _______________when only a small number of its members are living

A Food pyramid of grass, grasshoppers, robins and cats. Which will provide the least organisms?

________occurs when harmful substances enter a food web and build up in higher-level consumers.

_______________is the development of an ecosystem in an area that was initially bare.

What is the effect of using car pools, taking quick showers, and buying locally grown produce?