Ecosystems
What do we call all the living and nonliving
things in an environment and the many ways
they interact?
ecosystem
What occurs when two or more living things need the same resources in order to survive?
competition
What is a resource that exists in limited
amounts or is used faster than it can be replaced
in nature?
nonrenewable resource
What are the remains or mark of an animal
or plant that lived long ago?
fossil
What is a scientist who studies fossils
called?
paleontologist
What is the area or place where an organism
lives in an ecosystem?
habitat
Which resources would plants not compete
for?
A.sunlight
B.insects
C.water
D.space
b. insects
What is a resource that can be replaced?
renewable resource
What is a species that no longer exists?
extinct
What might a paleontologist conclude about
a dinosaur that left fossil footprints of webbed
feet?
The dinosaur could swim.
What are all the members of one species
that live within an area of an ecosystem?
population
Kudzu was originally brought to the United
States from Japan. At first kudzu was thought
to be beneficial to the environment. It was
used in gardens and in many open spaces as
a cover over soil to prevent erosion. However,
over time, it became invasive. Is kudzu a
animal, plant, or human that caused change?
plant
Why are fossil fuels considered nonrenewable
resources?
They cannot be replaced as fast as humans
use them.
A preserved skull, nest, and eggshell are
all examples of what type of fossil?
trace fossil
What are coal and oil called because they
were made from organisms that lived long
ago?
fossil fuels
In which type of ecosystem is the ground
beneath the surface frozen all year?
tundra
The United States has established national
parks where humans cannot build. How can
these help the environment?
They make sure the habitats of plants
and animals won’t be destroyed.
What is another name for oil?
petroleum
Because cast and molds are formed from
the body parts of living things, they are called
what type of fossil?
body fossils
What is the name of the timeline that scientists created that shows the ages of rocks and fossils?
geologic time scale
In what ecosystem would you find prairie
chickens and bison?
grasslands
How does a beaver affect its environment?
A beaver chops down trees and builds a dam.
The dam creates a pond, but stops the water
from flowing. This causes flooding.
What is a rock rich in valuable minerals
called?
ore
What are oily pools that exist on Earth’s
surface where animals would fall into and
become trapped? It would eventually harden
and create fossils.
tar pits
What modern animal did paleontogist
compare the hadrosaurs, dinosaurs with
large hollow crests on their heads, to?
peacocks