How does carbon cycle thru plants and animals? correct answer -
Photosynthesis and respiration and decomposition and reservoirs
How might the destruction of rainforests affect the balance of gases in Earth's
atmosphere? correct answer -It would be unbalanced because forests pull
carbon out of the environment.
What determines carrying capacity? correct answer -How much food and
land or resources are available to the population. (limiting factors)
What is the difference between food chains and food webs? correct answer
-Food webs are a bunch of different food chains and food chains are diagrams
of the energy transfer among organisms.
What is exponential growth? Give an example. correct answer -
Exponential growth is population growth that occurs when a population is
growing at a rapid rate and an example is the rabbit population from 2003 to
2010.
List 4 human activities and the greenhouse gas that they create. correct
answer -Burning fossil fuels and they create huge amounts of carbon
dioxide. clear- cutting forests doesn't take alot of carbon dioxide out of the
environment. Landfills release methane, sewage treatment releases nitrous
oxide.
Why are ash trees being cut down in many areas? correct answer -To try
and kill all the emerald ash borers.
describe what an organism's niche is. correct answer -Niche is what an
organism's role is in the environment.
Wolves are predators of deer. What is most likely to happen to the deer
population if the wolf population increased? correct answer -The deer
population would decrease.
, How would an increase in nest sites affect a population of pigeons? correct
answer -it would probably increase the number of pigeons.
White perch is a fish that is native to Atlantic coastal regions and is invasive to
the Great Lakes. It feeds on native species and is thought to be the cause of the
decline of the Great Lakes walleye fish populations. What was most likely its
mode of introduction? correct answer -Boats going from lake to lake with
their balice tanks.
A grass starts with 30,000 kJ of energy. How much energy would a cheetah
acquire after it ate a zebra that consumed the grass? correct answer -3,000
KJ of energy
What kind of display would be the best way to represent the data below? Type
of species
Critically endangered (%)
Endangered or vulnerable (%)
Plants
13
70
Invertebrates
0
35
Freshwater fish
9
37
Amphibians
7
30
Reptiles
5
28
Birds
0
12
Mammals
2
21 correct answer -Bar graph