Ecology

What is a population?

• One individual member of a species

• A group of individuals of the same species that live in the same area

• A community of different species and their environment

Which definition best fits the term BIOTIC?

• The study of the interactions between animals and their environment

• Factors in the environment that are considered living or the remains of living things

• Factors in the environment that are considered non-living

Which is an example of an ecosystem?

• An area of cold climate and communities of different species

• One elk

• A group of elks living together in the same area

• Elks, snow rabbits and owls living in the same area

The ecological role an organism performs in their specific environment is considered the organism's...

• Habitat

• Biome

• Population

• Niche

The arrow heads in a food chain or web represents what?

• They show how sunlight flows within an ecosystem

• They show what direction the energy is flowing between organisms

• They point to the organism that is being eaten

• They represent how water is transferred within a habitat.

The Eagle in the food web represents a:

• Producer

• Secondonary Comsumer

• Primary Comsumer

• Tertiary Comsumer

Plants in a food chain are referred to as:

• Decomposers

• Scavengers

• Comsumers/heterotrophs

• Producers/autotrophs

Why might an organism have more than one arrow coming from them in a food web?

• More than one organism may eat them

• They eat more than one other organism

• This organism gets its energy from multiple sources

What happens to energy as it moves through different levels in a pyramid?

• It increases

• It decreases

• It remains constant

In any food web, the organisms that are responsible for converting raw energy into usable chemical energy are collectively called ______ while organisms that recycle the nutrients trapped in dead organisms are collectively called______.

• Producers, consumers

• Producers, decomposers

• Consumers, decomposers