M11 Ecology Flashcards
All the members of the same species.
Population
Refers to all populations present in a specific area.
Community
Refers to the dynamic relationship between communities of living organisms and the environment.
Ecosystem
Critical roles that each organism play.
Ecological niche
An autotroph that produces food with light
Photoautotoph
Depends on autotrophs as the source of food.
Heterotroph (herbivore, carnivore, omnivore)
Relationship between two organisms of different species.
Interspecific relationship
Relationship between two organisms of the same species.
Intraspecific relationship
RELATIONSHIPS OF ORGANISMS
One of the organisms benefits from the association, while the other one is unaffected.
A. Commensalism
B. Mutualism
C. Parasitism
D. Predation
A. Commensalism
This is a group of different species interacting in an environment.
A. Population
B. Community
C. Ecosystem
D. Biome
B. Community
In rainforests, trees are usuallt very tall in order to get sufficient sunlight. Those trees, which are not tall enough, may be overshadowed by other trees. What relationship exists between trees in the rainforest with respect to harvesting enough sunlight?
A. Parasitism
B. Competition
C. Predation
D. Mutualism
B. Competition
Competition for sunlight exists between the trees in a rainforest.
If an ant is separated from its colony to find food, how will it be able to return to its colony?
A. They can sense their colony with thermal signatures that they can detect.
B. They leave off trails on the environment to find their way back.
C. Their brains are capable of memory that helps them navigate their way back.
D. None of the above
B.
Ants can find their way with the help of a chemical trail that other ants leave behind.
Chemicals which are needed by organisms o grow and survive
Nutrients
Processby which ammonia or ammonium is converted into nitrates (NO3) or nitrites (NO2)
Nitrification
Hot, arid or extremely cold polar regions with very low precipitation.
Desert
