An ecosystem is made up of __________ and ________ things.
living and non-living
100
____________ and food web show the movement of energy.
Food chains
100
T/F Environments only change slowly over time.
False, environment can change slowly or quickly
100
T/F We don't cause pollution.
False, humans cause pollution that affects air, water and land
100
What is the first step in the scientific method?
Ask a question.
200
Is there one ecosystem, or many different ones?
many different ecosystems
200
A predator is: an animal that eats and hunts other animals OR an animal that is hunted by another animal.
an animal that eats and hunts other animals
200
Give an example of a fast change.
Avalanche, volcano, sink hole, earthquake, tornado, etc.
200
The new species brought to the U.S. by accident from Russia that ate all the food crabs eat was called __________ __________.
zebra mussels
200
___________ are skeletons that grow on the outside of a body. We don't have these.
exoskeleton
300
T / F All the relationships among parts of an ecosystem keep it balanced.
True
300
T/F An example of symbiosis is when cleaner shrimp clean the teeth of an eel.
True
300
Organisms must adapt or move to survive an ________________________ ________.
environment change
300
How does too much hunting and fishing affect the environment?
It can negatively affect the environment by making animals endangered or lowering the population of animals we need to survive.
300
T/F All animals go through metamorphosis
False
400
Which of the following is an example of a community?
a) squirrels, blue jays and oak trees
b) a group of twenty sandhill cranes
c) a school of tuna
d) rocks, soil and air
a) squirrels, blue jays and oak trees
400
Plants compete for what three things?
Sunlight, soil and water
400
When organisms share limited resources, there is
a) an extra resource, b) competition, c) extinction, d) mutation
b) competition
400
Which would cause an ecosystem to change quickly?
a climate change, an earthquake, a lake drying up, or a rock becoming soil
an earthquake
400
Complete metamorphosis has ___ stages, whereas incomplete metamorphosis has ___ stages.
4, 3
500
Coral reef and the organisms that live in it form
a) a habitat, b) a community, c) a population d) an ecosystem
d) ecosystem
500
Where would you find animals with thick fur coats?
a) coral reef
b) tropical rain forest
c) tundra
d) desert
c) tundra
500
Which describes a food chain and a food web?
a) Both contain only consumers
b) Both begin with a producer
c) Both contain multiple ways that energy flows
d) Both must include a carnivore
b) Both begin with a producer
500
T/F Non-native populations grow quickly in new ecosystems because they are always at the top of the food chain.
False, the predators in the ecosystem are not used to hunting them.
500
A plant that has tubes that carry food and water all throughout it is called a ____________ plant.