Trick Question!! It is a continuous process so it doesn't begin or end!
100
What are the two biological processes that form the basis of the carbon cycle?
cellular respiration & photosynthesis
100
What organisms helps to make the nitrogen cycle possible?
Bacteria
100
What do the arrows in a food web mean?
Transfer of energy
100
What molecule is most of the carbon in the atmosphere found in?
Carbon Dioxide
200
Where is most of the water in the world found?
The ocean
200
When these are burned, carbon is released into the atmosphere.
Fossil Fuels
200
What force of nature helps to fix nitrogen?
lightning
200
What kind of organism is on the bottom of the food web?
producer
200
What could happen if an organism is removed from an ecosystem?
Its prey would increase, but its predator would decrease or have to find something else to eat.
300
Which part of the water cycle involves plants giving off water vapor?
transpiration
300
Carbon is released into the atmosphere when organisms such as bacteria break down living things. What is this process called?
Decomposition
300
How do plants get nitrogen?
by absorbing it from the soil
300
What kind of organism eats producers?
a primary consumer
300
What is the chemical equation for photosynthesis?
6CO2 + 6H2O -> C6H12O6 + 6O2
400
What is it called when water vapor cools in the atmosphere and changes into a liquid form?
condensation
400
While the greenhouse effect is a good thing because it traps solar energy for us to keep warm, too much carbon from the burning of fossil fuels is thought to cause what?
global warming
400
How do animals get nitrogen?
by eating plants or other animals that contain nitrogen
400
What might a secondary consumer be?
an omnivore or a carnivore
400
What is the difference between a food web and a food chain?
a food chain is a single what-eats-what relationship, but a food web shows how chains interconnect
500
What are the four parts of the water cycle that you learned about?