Organism Interactions quiz review

T/F: Food webs are made up of several food chains and are a better representation of energy transfer than food chains.

• True

• False

The snake is what type of consumer in this food chain?

• Primary

• Secondary

• Tertiary

An organism that creates its own energy via photosynthesis is called a(n)...

• Heterotroph

• Autotroph

An animal that feeds off of dead animal carcasses is a:

• Decompser

• Scavenger

• Autotroph

• Producer

Organisms such as fungi, bacteria, and some small insects that break down dead matter in the soil are called:

• Decomposers

• Scavengers

• Trophic levels

• Tertiary consumers

T/F: All organisms in a food web should have an arrow pointing to decomposers since decomposers receive energy from dead plants & animals.

• True

• False

T/F: A secondary consumer would also be considered a heterotroph.

• True

• False

What percentage of energy is absorbed between trophic levels in a food chain?

If there is 1,000 available calories in the first trophic level (producers), how many calories can be absorbed by the primary consumer (mice)?

• 1,000

• 100

• 10

• 1

In any given ecosystem, which trophic level of organisms would you expect to see the LEAST of?

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers