What kind of ecosystem has ground that is frozen for most of the year?
Tundra
100
An organism that gets its energy by eating the remains of animals is a ___________.
decomposer
100
What is a fossil?
The remains or mark of an animal that lived long ago.
200
What ecosystem has water covering the ground for at least part of the year?
Wetlands
200
Give an example of a producer.
Teacher check
200
True or false: The deeper a fossil is in rock, the older it is.
True
300
In a savannah, 10 giraffes drink at a watering hole. Which of these is the population?
10 giraffes
300
Complete this sentence: Energy and matter are passed in an ecosystem through __________.
food chains
300
Which kind of fossil preserves the hard and soft parts of an animal?
A fossil in amber
400
What kind of habitat do you think an animal with long, thick fur would most likely live in?
A cold habitat.
400
A population of fish gets a disease. Many of the fish die. What will happen to the food web.
The food web will change. Organisms will have to find new organisms to hunt and eat.
400
True or False: a preserved leg bone is an example of a trace fossil.
False
500
How does a beaver affect its environment? Give examples on how it affects other plants and animals in its habitat.
Teacher check
500
John is standing in a grassland ecosystem. He sees some leafy bushes, insects, rabbits, deer, and an owl. How are these organisms connected and how do they help their ecosystem thrive?
Teacher check.
500
What might finding a lizard fossil in the tundra tell paleontologists?