Biotic factors      Abiotic factors
*lions                *dry dirt
*zebras              *rocks
*acacia trees      *porous soil
*boabab trees     *dry air
*warthogs          *little water
*elephants          *fire
*rhinos    (without fire the                     savanna would be a                      tropical forest)

       BIOTIC     ^ ^ ^ ^ ^ ^ ^ ^

    ABIOTIC     ^ ^ ^ ^ ^ ^ ^ ^ ^


          carrying capacity

  1. The carrying capacity of a biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment.

lets say there are 20 gazelles in a group,and a drought comes through and there are alot less greens for the group.The number drops to 15.then the drought ends and they start to reproduce and the number rises to 19.they go and thrive for a long time and the number rises to 24......then the group gets lost and has no shelter,then they get attacked by a group of lions and the number drops again. Just depends on how much they have of the things they need.

         limiting factors

  1. In biology, common limiting factor resources or environmental conditions that limit the growth, abundance, or distribution of an organism or a population of organisms in an ecosystem.

in my ecosystem there are many carnivores and many herbavores. If things start to change and say they have a drought and then the greens that the gazelles eat will dissapear, then the gazelles will start to die of hunger,then say the lions wont have anything to eat,and so on and so forth. Its sort of like cause and effect.

             energy roles

producer(s)- Producers in the savannah include trees, shrubs, and grasses. The sun provides plants with the energy to grow.

primary consumer(s)- are herbivores, such as giraffes and zebras, they consume the vegetation.

secondary consumer(s)- are carnivores that include inhabitants that feed on herbavores, such as cheetahs and lions.

tertiary consumer(s)-are organisms that consume secondary consumers.

scavengers are animals that eat leftover meat (dead or alive) an example is a hyena

decomposers are things like bacteria that break down dead animals.

    food chains and food webs

in my ecosystem food webs are more effective because instead of showing energy flow from organism to the next its shows energy flow from more than one organism to the next.

                                                           food web

if i removed one population from the food web then the whole web will be effected. If say the elephant went extinked then the lions and hyenas ect. would have less food and eventually will fight each other for food.

trophic levels and energy pyramid


the chemical equation is C6H12O6    

C stands for Carbon dioxide

H stands for hydrogen

O stands for oxygen

the elements needed are water,oxygen,carbon,and sunlight and together they make glucose.

phtosynthesis takes place in an organelle called chloroplast,and it changes light energy to chemical energy


tropisim is the way an organism moves in responce to something.

the Umbrella Thorn Acacia is an example of geotropism because the roots grow down into the earth in the affect of gravity.

it helps them adapt to the enviroment around them. maybe to find ways to water or to avoid obsticals under ground near the roots.

         role of decomposers

without decomposers there would be little nutience in the soil for plants and many would start dying.plants will make less food for themself that means less energy to the consumer,and then may even end up dying compleatly

some decomposers found in the savanna are earthworms and fingi


the importance of having adaptations is if you did not adapt to your enviroment you would not be able to live long there.They help them survive like if your a plant and your in the desert you need to find a way to store water and a way to withstand the heat and the intense sunlight,or you wont be able to survive.

plant adaptations


   The trees and plants                                                                                                  have longer roots so that                                                                                                    they have the ability to                                                                                                       extract water from deeper into                                                                                               the ground.They have fewer                                                                                            leaves so that less moisture                                                                                              is lost though the process of                                                                                            evaporation, the leaves are                                                                                                also very small and thorny to                                                                                            reduce moisture lose.The                                                                                                   trees lose their leaves during the dry                                                                               season to keep and conserve more moisture.  

ANIMAL ADAPTATION          through various ways,like migrating(moving                                                                        to another area) and hibernating until the                                                                            season is over.  Grazing animals, like                                                                                  gazelles and zebras,feed on grasses and                                                                            often use camouflage to protect themselves                                                                        from predators when they are roaming in the                                                                        open. Some animals, such small mammals                                                                           and rodents, use camouflage to blend in                                                                             with their surroundings and have grass-                                                                                colored tan fur. These small animals also                                                                            avoid preditors  burrowing underground                                                                              and by being nocturnal (active during                                                                                   nighttime).                                                              

well it would not be able to adapt very quickly and it will try to adapt and end up not surviving

         natural selection

  1. the process where organisms better adapted to their environment tend to survive and produce more offspring.its important because if they cant adapt they wont be able to produce offspring and will end up extinct.

a lioness is a good example of natural selection because of how the color of the fur blends with the color of the grass.over time the fur of the lion/lioness changed so they could blend in with the grass to hunt.Thats why you see some lions with lighter fur or darker fur.

Comment Stream

2 years ago

@lorigreen i don't remember the tag sorry

2 years ago

Did you think about having a few more pictures of the Abiotic things?

2 years ago

i agree with your tackk and it is very acurrate

2 years ago

Good Job i agree with your post.