What is an ecosystem?

• Group of animals living together that reproduce
• Nonliving organisms that live together in an area
• All the organisms that live together in an area together with the nonliving factors of the environment
• Some organisms that do not live in a specific area with the nonliving factors of the environment.

Which of these are factors that affect the population?

• Food, Living Space, Climate
• Living Space, Water, Climate, Nightlife
• Food, Living Space, Climate, Water

The animal the eats the prey is called the?

• consumer
• producer
• predator
• host

All of the following are types of symbiosis except?

• parasitism
• mutualism
• commensalism
• hostism

Describe a feeding relationship.

• consumer, scavenger, producer
• producer, consumer, decomposer
• producer, decomposer, consumer

Consumers are classified based on?

• their food selection
• their species
• their genes

Invertebrates do not have backbones?

• True
• False

What important processes occur as part of the carbon dioxide-oxygen cycle?

• photosynthesis, respiration, decompostion
• photosynthesis, respiration, nitrogen fixation
• photosynthesis, water regulation, decomposition

Pioneer species such as mosses and lichens are?

• the second organisms to live in the area
• the first organisms to live in the area
• the third organisms to live in the area

A biosphere can support life?

• True
• False