What is a habitat?
The place where an organism lives.
Define a population.
All the organisms in one species, living in a habitat.
What is a community?
All the populations of different species in a habitat.
What is an environment?
The conditions surrounding an organism.
Define an ecosystem.
The interaction of a community of living organisms with the abiotic parts of their environment.
What 6 resources do plants compete for?
-light -space -water -mineral ions from the soil -seed dispersers -pollinators
What 4 resources do animals compete for?
-territory/shelter -water -food -mates
What is interdependence?
Species in a community depending on other species for things such as food, shelter, pollination and seed dispersal.
What is the term for species in a community depending on other species for things such as food, shelter, pollination and seed dispersal?
What can interdependence mean when there is a change in an ecosystem?
It can have far-reaching effects.`
What are the 5 kingdoms of organisms?
-Prokaryotes -Plants -Animals -Fungi -Protocista
What is are abiotic factors?
Non-living factors which affect organisms.
What are biotic factors?
Living factors which affect organisms.
Name 7 abiotic factors.
-Humidity -Light intensity -Temperature -Wind intensity and direction -Soil pH and mineral content -Carbon dioxide levels (plants) -Oxygen level (aquatic organisms)
Name 4 biotic factors.
-New predators -Availability of food -Competition -New pathogens
What is a stable community?
One where the populations don't fluctuate very much; they are in balance.
What are the three types of adaptation?
Structural -Behavioral -Functional (internal chemical reactions)
How are camels adapted to live in hot conditions?
-Long eyelashes -Thin layer of fat -Humps of fat that can be broken down into water -Double eyelids -Large surface area to volume ratio
How are animals that live in cold conditions adapted to their environment?
-Thick layer of blubber for insulation -Low surface area to volume ratio
How are arctic animals adapted to their environment?
-White fur to camouflage against the snow -Helps them sneak up on prey/hide from prey
Give an example of a behavioral adaptation.
Swallows moving to warmer climates during the winter.
Some microorganisms are adapted to live in very extreme conditions. What are these called?
Give examples of 3 conditions extremophiles can live in.
-High temperatures (volcanic vents)
What are secondary consumers eaten by?
Explain this graph: