Vocabulary
The living and nonliving things that make interact in an environment
ecosystem
Several connected food chains form a ______
Food web
How energy passes from one organism to another in an ecosystem
Food Chain
an organism that makes its own food
producer
Name a small change in an ecosystem
Spider builds a web to catch insects for food
Robin builds a nest for shelter
Cotton plant takes water from the soil
to move from one place to another
migrate
Food webs show how ______ passes from organism to another in an ecosystem
energy
What is the first organism in the food chain?
Producer
an organism that eats other organisms
consumer
What is a bigger change to an ecosystem?
Bacteria, worms, and mushrooms break down leaves and dead animals.
an individual organism's response to change in its ecosystem
accommodation
What do the arrows in a food web show?
The ways energy moves through an ecosystem from one living thing to another.
How do producers make their own food?
Using energy in sunlight, water, and carbon dioxide.
an organism that breaks down dead plant and animal material
decomposer
What is a helpful way we can change an ecosystem?
-Plant a tree
-Pick up litter
model of the order in which living things get the food they need
Food chain
What would happen if all the crane flies in a pond die?
Predators of the crane flies might not have enough food. They might die, too.
What is the first thing in the food chain?
Sun
the struggle among living things for resources
competition
the overlapping food chains in an ecosystem
Food web
What does it mean if an animal is endangered?
They are decreasing in numbers within an ecosystem
Name the second and third organism of a food chain
2. Consumer 3. Decomposers
Herbivore, Omnivore, or Carnivore
When organisms can't compete, they cannot get the resources they need. They may _____ or _____