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3 -Ecology Basics
3 -Energy
3 -Cycles of Matter
4-2 Ecosystems
4-2 Habitat change
100
The three approaches that scientists use to study ecology.
What are observing, experimenting, and modeling?
100
This is the main energy source for life on earth.
What is the sun
100
A means in which water can enter into the atmosphere by evaporating from the leaves of plants.
What is transpiration?
100
These are Non-living factors that shape an ecosystem.
What is an Abiotic Factor?
100
A series of predictable changes that occur in a community over time
What is ecological succession?
200
A level of organization that involves groups of individuals (species).
What is a population?
200
These types of organism are essential to the flow of energy through the biosphere
What are autotrophs?
200
This is a means of cycling carbon back into the atmosphere when consumers exhale.
What is respiration?
200
This is a region which an organism lives includes both biotic and abiotic factors. (Think of this as the organism's address)
What is an Ecosystem?
200
Succession that occurs on surfaces where no soil exists (bare rock - such as following a receding glacier or volcanic activity)
What is Primary Succession?
300
A collection of all organisms that live in a particular place together with their non-living environment.
What is an ecosystem?
300
These heterotrophs break down organic matter
What are decomposers?
300
The process where soil bacteria living on the roots of plants (legumes) convert nitrogen gas into ammonia
What is nitrogen fixation?
300
This is the physical and biological conditions that an organism lives and how it uses those conditions (think of this as what it does in its home)
What is a niche?
300
Succession that occurs following a major disturbance such as fire.
What is secondary succession?
400
An organism that obtains its energy from sunlight or chemicals to produce its own food
What is an autotroph?
400
Used to diagram the energy stored by producers as it is passed through the ecosystem
What is a food chain?
400
A complex linkage of all food chains in an ecosystem.
What is a food web?
400
A relationship between two species that live closely together (means "living together")
What is symbiosis?
400
Following primary succession, this is the first species to populate an area (lichen are often this species).
What is a Pioneer Species?
500
This process, used by some autotrophs, uses chemical energy to produce energy rich carbohydrates.
What is chemosynthesis?
500
This is the name for each step, or level, in a food chain or food web.
What is a trophic level?
500
This soil bacterial process converts nitrates into nitrogen gas.
What is denitrification?
500
Where one member of a symbiosis benefits but the other is neither helped nor harmed.
What is commensalism?
500
Scientists are finding that these factors are affecting climax communities (such as old growth forests in the Pacific Northwest)
What are natural disasters, climate change, and human activities such as introduction of non-native species.