03.2 Test

What is the first trophic level in a food chain

• Primary consumers
• Secondary consumers
• Primary producers
• Tertiary consumers

What is the primary role of primary producers in an ecosystem?

• To consume other organisms
• To convert solar energy into chemical energy
• To decompose dead matter
• To provide shelter for animals

What is energy primarily regarded as in a physical system?

• A type of matter
• The capacity for doing work
• A measure of temperature
• A form of light

Which of the following best describes an organism?

• A group of cells that function together
• A living thing made up of cells
• Any structure in an ecosystem
• A non-living entity

What is an ecosystem?

• A single organism in its environment
• A system formed through the interaction of organisms and their environment
• A type of climate
• A food chain without interdependencies

What constitutes tissue in biology?

• A group of organs
• An organism's habitat
• The energy produced by cells
• A group of cells with similar structure functioning together

In a food chain, energy moves from:

• Decomposers to primary producers
• Primary producers to consumers
• Consumers to decomposers
• All of the above

Which of the following is an example of a primary producer?

• Lion
• Grass
• Raccoon
• Vulture

What do we call the complex network of feeding relationships in an ecosystem?

• Food chain
• Trophic level
• Food web
• Energy cycle

How many steps are typically between primary producers and large fish in aquatic ecosystems?

• One or two
• Two or three
• Four or five
• Six or seven