Ecosystems, Food Webs and Biomes

Organisms that make up the living part of an ecosystem.

• abiotic
• biotic factors
• ecology
• ecosystems

All of the populations that live in one area together

• limiting factors

• populations

• community

• speed limit

All members of the same species is called a _______________.

• population

• species

• community

• organism

What abiotic factors might you find in an ecosystem?

• . Mammals, insects, and birds

• Plants, fungi, and lichen

• Rocks, air, light, and soil

• Bacteria and other microbes

A system of several overlapping food chains.

• energy pyramid

• food web

• ecosystem

• energy

The process that plants, algae, and some bacteria use to take in carbon dioxide from the environment and use it to make food.

• Photosynthesis

• Decomposition

• Respiration

• Food web

All energy on Earth ultimately comes from what source?

• Water
• Sun
• Consumers
• Oxygen

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

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

• More than one organism may eat them.

• They may eat more than one other organism.

• This organism gets its energy from multiple sources.

The rabbit in this food web would be considered a:

• Decomposer
• Producer
• Secondary Consumer
• Primary Consumer