Abiotic/Biotic & Levels of Organization
Is grass abiotic or biotic?
biotic
When one organism eats another they have what kind of relationship?
predator-prey
1,000 Kcals at the producer level means the primary consumers will have
100 kcals
What has more arrows, a food web or chain?
food web
An organism that only eats meat is a ...
carnivore
Which is larger, a population or a biome?
biome
If prey increase, predators will ...
also increase
What unit is used for energy calculations?
Kcals (kilocalories)
Food web arrows point in the direction of ---------- flow
energy
How do humans contribute to the carbon cycle with their bodies?
cellular respiration
What is smaller, populations or ecosystems?
populations
When two organisms help each other out this is a ...
mutualism
3,000 Kcals at the tertiary consumer level, how many at the producer level?
3,000,000 Kcals
What trophic level is at the beginning of a food chain?
producers
When bacteria take nitrogen out of the air and put it into the soil...
nitrogen fixation
What is bigger, communities or ecosystems?
ecosystems
When are one organism is helped while the other is not affected at all we call this a ...
commensalism
1,000 Kcals was gained. How much must've been lost?
9,000 Kcals
A wolf ate a fox. The arrow in a food web will point from
fox to wolf
when water turns from liquid to gas
evaporation
What is the difference between a community and an ecosystem?
ecosystems include abiotic factors
Mutualism, Commensalism, Parasitism are all...
symbiotic relationships
0.998 Kcals at the tertiary consumer level, how many were given from the sun?
9,980 Kcals
What group is often not shown on food webs and chains?
decomposers
An organism that can eat living or dead material
detrivore