Biotic factors

Animals: polar bear, arctic fox, penguins, arctic hare                                                           plants: arctic poppy, bearberry, arctic moss, arctic willow

Abiotic Factors

snow, ice, sun,  weather, temp.,rocks

carrying capacity

food, water, shelter, space

If food in the tundra is low example fish they will have to fight for it.

Limiting factors

when the resources are limited and they fight for them.

polar bear eats fish

Energy  roles

producer: the producer gives the energy to the whole food pyramid from the sun example: bearberry

primary consumer: example: This organism eats the producer for energy. Example: arctic hare

secondary consumer: this organism eats the primary consumer which gives the energy from the primary consumer, example: arctic fox

Territory consumer: This organism is at the top eating the secondary consumer obtaining its energy all the way from the producer, example: polar bear

Each organism gets energy from the organism before, except producers get their energy from the sun.

Producers are important because they pass the energy from the sun to other organisms.

Food webs

Food webs are more realistic because food chains only show one thing that eats the next. When food webs show plenty of things that eat another organism.

Each organism relies on another so if you take out a polar bear all the secondary consumers will become over populate and lower the amount of primary consumers.

The pyramid is shaped the way it is because every trophic level gets less energy so it shrinks as it goes up, like a pyramid.

The producers are in the largest part of the pyramid because they have the most energy, unlike the territory consumer, because it has the least amount of energy so it has the smallest part on the pyramid.


chemical equation for photosynthesis


For photosynthesis to happen you need sunlight, carbon dioxide, and water. Then after the process is finished it produces oxygen and glucose.

Photosynthesis takes place in the plant cell chloroplasts.

The energy transformation taking place is light energy (sunlight) transforming into chemical energy.


Tropism is the turning of all or part of an organism in a particular direction in response to an external stimulus. Example: If a plant needs sun in the tundra it will grow outwards to the sun.

In this picture the plant is reaching for light, because in the tundra the sun isn't out often so this tropism is helping it get sunlight to be able to make photosynthesis.


Decomposers are important because they give nutrients to the plants and trees. The effects of no decomposers would be no nutrients would go to the plants so not as much energy would go to the consumers of the plant.


Adaptations are important so the organisms can survive in their environment. The two types of adaptations are behavioral and physical adaptations.

Examples of adaptations in the tundra are: polar bears have thick coats. Then the plants have to survive through  the winter so they have to have food storage,


This means a process in which individuals better adapt to their environment to survive and reproduce.

Polar bears population is dropping because the ice is melting. So they have to adapt to swimming more often.

Comment Stream

2 years ago

the abiotic section is confusing

2 years ago

Everything looks good

2 years ago

Wonderful pictures and great format.

2 years ago

Thank you :]

2 years ago

Looks good.

2 years ago

blank space here