Unit 2: Energy in an Ecosystem

Front

If an organism uses photosynthesis to make its energy, it is a _____

Back

producer

Front

What energy transformation occurs as a mouse produces body heat?

Back

Chemical -> Thermal

Front

When a pendulum swings, at which point is kinetic energy highest?

Back

Point 3

Front

The sun, water, oxygen, and climate are all examples of _____

Back

abiotic factors

Front

In which of the following populations is the least energy concentrated?

Back

hawks

Front

What is the primary source of energy for most ecosystems?

Back

The sun

Front

Define 'biomass' in the context of an ecosystem.

Back

The total mass of living matter within a given area.

Front

What role do decomposers play in an ecosystem?

Back

They break down dead organic material, returning nutrients to the soil.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of energy transfer, while a food web is a complex network of interconnected food chains.

Front

What is an example of a primary consumer?

Back

Rabbits, which eat plants.