a proposed answer to a question

observations or measurements recorded in an investigation

an organism that breaks down droppings or dead organisms

a scientist who studies ecosystems

all the living and nonliving things in an area

information that supports an answer to a question

a diagram that shows what eats what in an ecosystem

the stuff that things are made of

a group of atoms joined together in a particular way

something taken in by plants and animals that helps them grow

a living thing, such as a plant or an animal

the process of returning something to its original condition by fixing or repairing it

a mixture of rocks, water, air, parts of dead organisms, and tiny living organisms

What is the source of all the energy in an ecosystem?

In a food chain, When a rabbit eats hay, the hay is the rabbits source of _____.

A system made up of organisms interacting with one another

How does energy enter an ecosystem?

The gas in the air that plants use to make their food is called...

A restriction plan is a set of actions that are meant to help an ecosystem recover from damage.

Organisms stop growing after they become adults.  

Plants do not need food.  

 All decomposers that live in soil release nutrients back into the soil. 

Plants, animals, and decomposers grow by changing food molecules into body molecules.

Scientists convince others that their claims are correct by using opinions as evidence.