ecosystem

Ecosystem ecology refers to how ______ and ________ come into an environment and move around.

• Time and Space

• Energy and Materials

• Energy and Time

Without plants we would have no animals.

• True

• False

What is biomass?

• total weight of living things within an ecosystem

• Nonliving things within an ecosystem

Law of conservation of energy states that energy can not be created or destroyed.  It is just transferred from one thing to another.

• False

• True

What is the primary source of energy in an ecosystem?

• Plants

• Animals

• Sun

Who converts solar energy to chemical energy?

• Animals

• Plants

Ecologists refer to plants as what?

• Consumers 

• Producers

• Decomposers

Herbivores are referred to as ________ consumer.

• Secondary 

• Primary

• Tertiary

A carnivore is referred to as a ________ consumer.

• Producer

• Primary

• Secondary

Organisms only hold on to _____ percent of the energy they ingest.

• 100

• 10

• 25

• 55