Ecology Review #1

This term describes an organism's interactions within the environment

• Abiotic

• Biotic

• Biosphere

• Niche

What links together the abiotic and the biotic aspects of an ecosystem?

• the plant and animal life

• the weather and climate

• the flows of energy and the cycles of nutrients

• the decomposers

Select all the possible answers:

Which of the following is/are producers?

• certain bacteria

• certain fungi

• algae

• all plants

What is the term for the physical environment in which an organism lives?

• niche

• habitat

• biome

• biosphere

Niche is another word for habitat. True or False?

• True

• False

Select all possible answers:

What are examples of types of heterotrophs?

• carnivores

• Omnivores

• herbivores

• detritivores

A food chain depicts the transfer of_______ within an ecosystem.

Select all possible answers:

Why are decomposers important to the Earth's ecosystems?

• they create healthy soil

• they keep water clean

• they break down dead plants, animals, and waste.

• they convert light energy into chemical bond energy

Biomass is the greatest at the _____ trophic level.

• first

• last

Because of the continual recycling of energy, there can be more than seven trophic levels in a food chain.

• True

• False