Unit 11 - Ecology Test Review

A group of similar organisms that can reproduce with each other is a ______

• species

• population

• community

• biosphere

A group of more than one kind of organism interacting in a biosphere is a ______.

• species

• population

• community

• biosphere

Level of organization that includes both living and non-living factors is:

• population

• community

• ecosystem

• species

Herbivores and carnivores are similar because.....

• both use photosynthesis to make their own food

• both are consumers and eat other organisms

• both consume only producers

• both are autotrophs

How do producers get their food?

• from sunlight through photosynthesis

• by eating other organisms

• absorbing nitrogen from the air

• by breaking down waste

A bird stalks, kills, and then eats an insect. Which of the following terms describe the bird?

• carnivore, consumer

• herbivore, decomposer

• producer, heterotroph

• autotroph, herbivore

A food web is:

• a spider's feeding strategy

• complex feeding interactions in a community made up of many interconnected food chains

• the same as a pyramid of energy

• a basic feeding chain from producer to primary consumer

The bottom of every food web, food chain, and ecological pyramid is:

• tertiary consumers

• primary consumers

• primary producers

• secondary consumers

How do animals obtain the majority of the nitrogen then need to survive?

• by consuming plants or other animals

• absorption through roots in the soil

• through photosynthesis

• through respiration

The process of changing atmospheric nitrogen into nitrates is called:

• the carbon cycle

• denitrification

• nitrogen fixation

• precipitation