Chapter 5.1 & 5.2 Quiz

The process of breaking down food to yield energy

• Photosynthesis

• Cellular respiration

• Food chains

• Decomposers

The process in which plants make sugar molecules from sunlight

• Photosynthesis

• Cellular respiration

• Carbon cycle

• Nitrogen cycle

Consumers that get their food by breaking down dead organisms

• Producers

• Herbivores

• Omnivores

• Decomposers

What is the ultimate source of energy for almost all organisms?

• Producers

• Consumers

• The sun

• Bacteria

What term is used to describe a linear sequence in which energy is transferred from one organism to the next?

• Food web

• Food chain

• Ecosystem

• Trophic level

Which organism is likely to be in the bottom trophic level in a food chain?

• leopard seal

• algae

• shrimp

• killer whale

What are organisms that eat both plants and animals called?

• Producers

• Carnivores

• Herbivores

• Omnivores

The bottom of an energy pyramid holds the ______ energy, while the top of an energy pyramid holds the ______ energy.

• least, most

• most, least

Each time an organism eats another organism, energy transfer takes place. Some of that energy is also lost in the form of _________.

• carbon

• nitrogen

• heat

• carbon dioxide

The many feeding relationships possible in an ecosystem

• Food chain

• Food web

• Trophic levels