Ecology

Ecology is the study of:

• only the living things in the environment

• only the nonliving things in the environment

• how living things interact with each other and the nonliving things in the environment

• scientists who perform research on living things

What term do ecologists use to describe where an animal lives (an animal’s home)?

• Ecosystem

• Ecologist

• Habitat

• Population

Which of the following is an example of a living thing?

• A bacterium

• A shell

• Water

• Sweat

What type of organism can make its own food? Select all that applies

• An autotroph

• A heterotroph

• A consumer

• A producer

Organisms that can make their own food do so by the process of:

• decomposition

• respiration

• photosynthesis

• scavenging

What type of consumer eats plants? Select all that applies

• Herbivore

• Omnivore

• Carnivore

• Scavenger

What is a food chain?

• A representation of an organism’s life cycle

• A way to show the feeding relationships between organisms

• The sequence of events that occurs during photosynthesis

• A way to show how animals interact with nonliving parts of the environment

The first organism in a food chain is ALWAYS a:

• producer

• consumer

• decomposer

• Any of the above

How much energy is transferred between trophic levels?

• 25%

• 20%

• 10%

• 90%

What is a niche?

• The habitat that an organism lives in

• An organism’s “role” in an ecosystem

• A type of consumer

• The relationship between a producer and consumer