Biotic factors: Living factors in an ecosystem
Polar Bears Grass
Eskimo Arctic willow
Fish Paspue Flower
Yeti Purple Saxifrage
Abiotic factors: Non living factors an ecosystem
Polar bear's population are changing because the ice caps are melting,can't reach fish,and pollution.
Carrying capacity:the number of people, other living organisms, or crops that a region can support without environmental degradation
Limiting factors:resources or environmental conditions that limit the growth, abundance, or distribution of an organism or a population of organisms in an ecosystem
Bear/seal Bear/fish Bear/penguin Penguin/fish Yeti/Eskimos
less bears more seals
More bears less fish
Energy role:the transfer of energy from one alive thingy to another alive thingy
top carnivores get it's energy from a lower carnivore
lower carnivores get their energy from herbivores
herbivores get their energy from producers
producer gets energy from the sun
producers sort of starts the energy roles so they are very much needed
Food webs are more realistic because they have more than one line,animals eat more than one animals
if you were to remove a part a food web a lot of the food web would crash
2nd Polar bear
1st carnivore Penguin
Energy pyramids are in the shape of a pyramids because it gets smaller closer to the top
The bottom is bigger has more energy and it is smaller higher up because it has less energy
6CO2 + 6H2O ------> C6H12O6 + 6O2
Where: CO2 = carbon dioxide
H2O = water
Light energy is required
C6H12O6 = glucose
O2 = oxygen
The one above is a
Tropism:the turning of all or part of an organism in a particular direction in response to an external stimulus.
If a plant is put on a hill Tropism will make it grow up wards.
The role of Decomposers
Decomposers are very useful they support the ecosystem. With out them, basically everything would be DEAD.
Adaptations are very important.Structural,Behavior,& Physiological.
This is a Polar Bears
This is a Plant
If you were to put a Polar bear in a jungle it would be unable to obtain food,then without food it would parish.
Natural Selection:the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.
Polar bears used to be a darker color but do to natural selection polar bear's fur got darker.