Intro to Science/ Flow of Energy
The ultimate source of energy is the
sun
Which biome is characterized by low annual rainfall, less than 26 centimeters (about 10-11 inches) per year?
desert
When the abundance (number) of organisms is used to determine the overall health of an environment, that organism is referred to as a(n) ___________ species.
indicator
Which renewable energy source converts sunlight directly into electricity?
solar panel/ power
Removing forests for agriculture or housing primarily leads to:
loss of O2 or increase in CO2
In an energy pyramid or food chain, the trophic level with the most biomass is __________.
producers
What two factors are important when describing climate?
temperature and precipitation
Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whale.
commensalism
Ultimately, Milankovitch came up with a theory that the earth's past fluctuations in climate, were caused by
changes in the amount of sunlight reaching the earth.
When trees die or burn, what happens to the carbon they stored?
It returns to the atmosphere as CO₂
When playing sports in the extreme heat outdoors, your body has the ability to maintain a body temperature of 98.6 (or in the normal range). This is an example of which characteristic of life?
homeostasis
A climatogram shows the average monthly ________ and ______ of an area.
temperature and precipitation
Mistletoe grows in the top of hardwood trees. It steals water and nutrients from the tree, limiting the tree's ability to produce leaves on that branch. In turn it is getting nutrients to grow bigger. This interferes with photosynthesis on that part of the tree. This is an example of __________________.
parasitism
what best defines a nonrenewable energy resource?
One that cannot be replaced as quickly as it is used
Which human action has the least effect on greenhouse gas emissions?
solar energy/ power
describe independent and dependent variables.
I- the variable that the experimenter is changing or manipulating
D- the data you're measuring
__________ species reproduce rapidly in a new habitat due to the lack of parasites and predators that would naturally control their population growth.
invasive
What are the products of photosynthesis?
glucose and oxygen
The main affect on geological climate over time, or the last hundreds of thousand years is ________________
Milankovitch cycles
A factory’s wastewater pipe emptying into a river is an example of:
point source pollution
list the levels of organization from smallest to largest.
organism,
population,
community,
ecosystem,
biome,
biosphere
What occurs when predators limit the density or behavior of their prey, which increases the survival of the next lower trophic level.
trophic cascades
Compare and contrast primary and secondary succession of an ecosystem. What is the distinction between them?
Primary succession is the establishment of a community in an area with bare rock, while secondary succession is the establishment of a new community that begins with soil.
The three elements of the Milankovitch Cycles are what and describe each
eccentricity, shape of earths orbit
obliquity, tilt of earths axis
precession- earths wobble
Which type of pollution is most harmful to nocturnal wildlife?
water pollution