Life Science Unit Review 20-21

All the living AND nonliving things in the same area

• biotic factors

• abiotic factors

• ecology

• ecosystem

Living parts of an ecosystem

• biotic factors

• abiotic factors

Temperature, water, soil, and air are all _____ of an ecosystem.

• biotic factors

• abiotic factors

A _____ makes its own food.

• producer

• consumer

• decomposer

• scavenger

The majority of humans eat a variety of meats and plants. Therefore, most humans are _____.

• producers

• herbivores

• carnivores

• omnivores

A predator such as a tiger or snake is a(n) _____.

• omnivore

• carnivore

• producer

• herbivore

Which of the following is a herbivore?

• shark

• eagle

• frog

• cow

Fungi (like mushrooms), bacteria, & worms are decomposers. What does this mean? Check all that are correct.

• They break down decomposing plant or animal material.

• They make their own food.

• They eat other organisms for energy.

• They return nutrients to soil.

What is photosynthesis?

• the process of herbivores making their own food

• the process of producers making their own food

• the process of consumers digesting food

• the process of energy moving from one organism to another in a food chain

Check ALL of a plant's basic needs for survival.

• soil

• sunlight

• water

• carbon dioxide