Ecosystem 100
What is one of the jobs of an aquatic ecologist?
to study freshwater and saltwater ecosystems.
p.103
In the carbon and oxygen cycles, what do plants need for photosynthesis? (hint: 3 things)
sunlight, carbon dioxide, and water
All forms of pollution, in time, make their way to water.
True
p.106
What stress does not have a definite beginning or ending?
drought
p.100
Monsoons affect the seasons in some areas because _______
the winds change direction with the seasons
What is the Earth system called that includes all of Earth's water?
hydrosphere
p.89
During cellular respiration, what do cells use oxygen for?
to break down sugar into usable energy
p.93
The largest man-made stress is probably native plants.
False
What is it called when water vapor is released from plant leaves?
transpiration
p.89
What is a scientist who studies water ecosystems called?
aquatic ecologist
What states of matter can precipitation fall as?
liquid or solid
p.90
What is an invasive organism?
an organism that has been introduced to a new ecosystem and can cause harm.
p.108
Oxygen makes up most of the atmosphere.
False
The process of decaying, or rotting away is called ____
decomposition
p.93
Name one of the benefits of a fire in an ecosystem?
Nutrients are recycled from dead trees and other plants into the soil.
p.99
What is one of the causes of a fire in an ecosystem?
people's carelessness
p.98
Change of liquid water into water vapor, or gas
evaporation
Precipitation can fall as a liquid or a gas.
False
p.90
How does the state of matter change during condensation?
from a gas to a liquid
p.90
What is a nutrient called that is used to build structures in organisms?
protein
p.94
A regular, repeating pattern of change is a/an _____
cycle
p.86
water that soaks into the soil and is stored there
groundwater
Most organisms can use nitrogen gas.
False.
p.94
Some areas have summer and winter which differ in the ________
average temperature
What are the seasons called where the amount of precipitation changes a lot?
wet and dry