Food Chains, Predators, Herbivores & Carnivores
An animal that eats other animals for food.
What is a carnivore?
Trees eat soil. True or false.
What is false?
A living thing that breaks down dead plants and animal materials.
What is a decomposer?
They use carbon dioxide and release oxygen, include plants, algae, and phytoplankton. They also make their own food, rather than eating other living things.
What are producers?
Use these words to correctly show the flow of energy through a food web.
consumers decomposers producers
What is producers → consumers → decomposers?
An animal that eats only plants.
What is an herbivore?
Tiny openings on the underside of leaves where it sucks in air that it needs for its food.
What are stomata?
A substance needed by an organism for health and growth.
What are nutrients?
They break down waste and dead material into nutrients for plants.
What are decomposers?
These organisms were most likely to survive the Cretaceous extinction.
Who were the omnivores, the small animals, the plants, and the decomposers?
An animal that eats both plants and other animals.
What is an omnivore?
Mushrooms, mold, and fungi.
What are decomposers?
A way to describe which animal eats other organisms in an ecosystem.
What is a food chain?
____________ take in carbon dioxide, but ____________ release carbon dioxide.
What are plants……………...………………………………. decomposers and consumers?
Scientists have reason to think that NOT ALL of the dinosaurs died in the Cretaceous extinction. True or false.
What is true?
When you go “down” the food chain by continuing to ask “What does it eat?” at what category of living things do you always end up?
What is plants (producers)?
Worms are the ONLY kind of decomposers. True or false.
A model that shows how food chains connect and overlap.
What is a food web?
You have to clean a fish tank but not a pond because...
What is a fish tank doesn’t have decomposers or plants like a pond does?
Choose the statement that most accurately describes why the dinosaurs died.
a. The dinosaurs died from earthquakes set off by the asteroid impact.
b. The dinosaurs burned up instantly from a giant fireball caused by the asteroid.
c. Most dinosaurs starved due to the collapse of their food webs.
d. Most dinosaurs suffocated because they couldn’t breathe air full of asteroid dust.
e. The dinosaurs froze to death when the sun was blocked out.
What is most dinosaurs starved due to the collapse of their food webs?
Several food chains are linked to each other.
What is a food web?
Name the biggest tree.
What is the sequoia named General Sherman?
A community of living and nonliving things in an environment and all their interactions.
What is an ecosystem?
An ____________ includes all living things (producers, consumers, decomposers) in an area, and their nonliving environment.
What is an ecosystem?
Many scientists think that an asteroid caused the dinosaurs to go extinct. Claim: An asteroid impact caused the dinosaurs to go extinct. Name two pieces of evidence that support this claim.
What is...?
Scientists found a layer of asteroid dust in rocks all around the world. In younger rocks above that layer, there are no dinosaurs. The layer of asteroid dust shows that the entire Earth was affected by dust from an asteroid impact. It could have blocked the sun and caused the dinosaurs to go extinct. Volcanoes in recent history have erupted with so much dust and ash that they changed the earth’s climate and caused a “year without a summer.” If dust from volcanoes can cause temperatures to drop and plants not to grow, dust from an asteroid impact could have done the same thing. A large crater was discovered in the Yucatán Peninsula, Mexico (Chicxulub Crater). Scientists dated the crater to near the end of the Cretaceous period. The crater at Chicxulub could have been the site where a large asteroid hit the Earth and caused the dinosaur extinction.