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3.1 Concepts
3.1 Concepts
3.2 Concepts
3.2 Concepts
3.3 Concepts
100
One living thing
An organism (or an individual)
100
The two things that ecology studies
Organisms and their environment
100
The main source of energy on Earth
Sunlight
100
An organism that eats only producers
An herbivore
100
The process of a substance in the liquid state changing to a gaseous state
Evaporation
200
What is a population?
A group of organisms that are of the same species in the same area
200
The combined portions of Earth where life exists
The biosphere
200
An organism that eats all other kinds of organisms
An omnivore
200
The percent of energy that transfers from one trophic level to the next
10%
200
The pathway by which a chemical substance moves through both biotic and abiotic Earth
A biochemical cycle
300
A group of ecosystems that have the same climate and similar dominant communities
A biome
300
A collection of all organisms that live in a particular place, together with their nonliving, or abiotic, surroundings
An ecosystem
300
This type of organism is most likely to be found at the bottom trophic level of a food web
A producer
300
The process where organisms use chemical energy to produce carbohydrates
Chemosynthesis
300
What is the definition of a limiting nutrient?
A nutrient is so limited in an ecosystem that animal growth is affected
400
What is the definition of a species?
A group of organisms so similar to each other that they can breed and produce fertile offspring
400
The main difference between an ecosystem and a community, or what an ecosystem has that a community does not have
What are nonliving things (or abiotic factors)?
400
The way that energy flows in a food web (from ____ to ____)
From producers to consumers (or from autotrophs to heterotrophs)
400
The three things that are necessary for photosynthesis
Water, sunlight, and carbon dioxide
400
What is the definition of transpiration?
The process where water evaporates from the leaves of plants