Relationships
Organization
Trophic Levels
Biodiversity & Change
Food & Energy
100
Define symbiosis.
Two different organisms living closely together.
100
What is a group of organisms of the same species living in the same area?
Population
100
What is an organism that breaks down dead organisms and waste?
Decomposer
100
What is the series of changes that occur to an ecosystem after a disturbance such as a volcano eruption called?
Primary Succession
100
What is the source of all energy in a food web?
The Sun
200
Ticks bite and suck blood from deer. What type of symbiotic relationship is this?
Parasitic
200
What is a community and its abiotic environment?
Ecosystem
200
What is an organism that makes its own food?
Producer
200
What are the 5 main human impacts on biodiversity?
Habitat Loss
Invasive Species
Pollution
Population Growth
Overharvesting
200
What happens to the grasshopper population if the frog population dies out?
The grasshopper population increases.
300
Bees visit flowers to collect nectar. In the process they carry pollen from flower to flower allowing the plants to reproduce. What kind of symbiotic relationship is this?
Mutualism
300
What is a factor that constrains the growth of a population?
Limiting Factor
300
What eats secondary consumers?
Tertiary Consumers
300
Name a pioneer species.
Lichens or moss.
300
What do the arrows represent in a food chain/web?
The arrows show the MOVEMENT OF ENERGY between organisms.
400
Red-tailed hawks hunt and eat rabbits. What kind of relationship is this?
Predator-Prey
400
What is a group of populations of different species living together and interacting with each other?
Community
400
What is a heterotroph?
An organism that eats other organisms for energy.
400
How does biodiversity affect the health of an ecosystem?
It increases the health of an ecosystem.
400
An energy pyramid shows the flow of energy from one trophic level to the next. Where does the energy that is lost between tropic levels go?
It's lost as heat.
500
Remora fish swim close to sharks to eat the leftover scraps after the shark eats its meal. The shark is neither helped nor bothered by the relationship. What type of symbiosis is this?
Commensalism
500
What are the non-living parts, such as rocks, of an ecosystem called?
Abiotic Factors
500
What is an organism that eats both plants and animals?
Omnivore
500
How does secondary succession differ from primary succession?
Soil is present at the start of secondary succession.
500
Why is a food web a more accurate representation of energy flow in an ecosystem than a food chain?
There are many more feeding relationships in an ecosystem than a food chain indicates.