The African Plains

          Biotic factors

Animals:      Lions, Buffalo,  

Plants:        Grass, Trees, Small Shrubs

          Abiotic factors             

Dirt, Temperature, Water, air, sunlight

                            Carrying Capacity and Changes in Population                                                   -Carrying capacity is the amount or limit of organisms the habitat can hold without it failing.

-The resources needed for an organism to survive are; food water shelter and space

-The buffalo and lions: when the lion hunts the buffalo the population runs down which in turn gives the habitat more resources and more lions until they, go through a drought, then the population runs down and it happens all over again.

Limiting factors                                                                                                              When there are limited resources in an environment populations change. Example-When there are a limited amount of plants in an ecosystem, giraffes struggle and compete for the leaves. and as the population goes down it gets easier for the already living to survive. and when giraffes population goes down so does the predators population. (Lions)

competition between giraffes

Step 5: Energy roles

Producer for ecosystem: Grass

First level consumer: Buffalo

Second level consumer: Lion

Third level consumer: Vulture

buffalo eating grass
lion eating buffalo

If i were to remove one species from this food web ecosystem; for example if i were to remove the hyena than the elephant population would grow and then the trees would decrease in population.

The grass collects sunlight for its food. The buffalo eats the grass and the lion eats the buffalo and so on, and the energy is passed on.

Why are producers vital to the ecosystem? For numerous reasons, first the suns energy wouldn't be passed on without it, second they also produce oxygen for the animals to breath.

Step 6: Food webs and chains

Why are food webs more realistic? They show many more possibilities than any other chain or pyramid.

Step 7 Trophic levels

The reason behind the base being big and going to top being small is because of the amount of sun and energy in each level. Thats why the top is the smallest.

The pyramid is perfect for this because it shows the amount of energy flowing, kcal's, and it also shows the population shrinking as they get higher up

Step 8 Photosythesis

Photosythesis Process

Glucose: C6,H12,O6

Water: H2O

Carbon Dioxide: CO2

Oxygen: O2

These are the things that are vital to photosynthesis. Photosynthesis creates glucose and oxygen, which we consumers need to live, (oxygen not glucose).

See the one labeled chloroplast? Thats mainly where photosynthesis takes place, little pigments inside this organelle called chlorophyll have the ability to absurd the suns light and use it to makes its own food, glucose. Of course with the help of roots, (water) and leafs, (carbon dioxide).

Step 9 Tropisms

Plants usually react to stimuli in there environment called tropisms, in my ecosystem the most probable stimulus will be hydrotropisms. In my dry but full of life environment the plants will most likely have bigger roots or grow towards or near bodies of water around them to get as much water possible.

The tropisms will really help plants in this environment and will succeed more than plants without this tropism.

Step 10 Decomposers

In my ecosystem the most likely decomposer to find would probably be the dung beetle, which are native to africa.

Without decomposers my ecosystem would fail, producers would die which in turn would kill primary consumers then secondary and so on.

Disgusting i now but mrs. gunnip made me

                                                      Step 11 Adaptations

Without adaptations everything would fail, animals and plants couldn't survive at all.

The speed of a gazelle is one adaptation that this animal would die without. They adapted this to out run speedy lions.

If i were to place a gazelle in the middle of the rainforest they'd die very fast due to the fact they aren't built for small enclosed areas.

                                             Step 12 natural selection

Natural selection is the process of passing and inheirting traits and getting rid of the ones that are not as useful, This is a key component in evolution.

Example: Giraffes, these calm desolate animals have extraordinarily long necks witch help them reach the leaves on tall trees. without this they would not be able to live. natural selection has a big role in this. over time and generations it has passed down the long neck trait and has made every one of their breed have the neck.

Comment Stream

2 years ago

Go back and read my instructions and look at my example. You need to rework some things.

2 years ago

good job. u could make 'carrying capacity' and 'limiting factors' bigger but good job overall 😀

2 years ago

love it so much but make sure to add a title bc it says ¨...¨

2 years ago

You did a great job😊

2 years ago

I think your chart/ graph was really good for a presentation

2 years ago

I think that you need to jazz it up a bit, and use different fonts and headlines. I would also suggest that you elaborate on your explaining. Overall I think that you are heading in the right direction. 😀

2 years ago

Great work!!!