Biotic - Living factors in an ecosystem

Abiotic - Non-living factors in an ecosystem

The climate is a non-living factor in the ecosystem so the climate is abiotic. Also, the different species of fish and animals are living factors in an ecosystem making them biotic factors.

Autotroph - Organisms that make their own food through processes such as photosynthesis.

Heterotroph - Organisms that cannot make their own food and must obtain energy through other sources.

The coyote is a heterotroph because it cannot make its own food. It has to eat other organisms in order to obtain energy. The trees in the background are autotrophs because they can make their own food through photosynthesis.

Predator - An organism that kills other organisms for food.

Prey - An organism that is hunted for by the predators.

An example of a predator and prey relationship would be the cheetah and the zebra. The cheetah is the predator because it hunts the zebra and the zebra is the prey because it is being hunted.

This is an example of mutualism because both the flower and the bees benefit from their interaction. The bees get food for the hive and the flower gets it's seeds carried to be reproduced elsewhere.

This is an example of comensalism because the barnacles are being benefited from their interaction but the bowling pens are not being affected. Barnacles and whales are a real life version of commensalism. Barncales obtain plankton as the whales swim.

This is an example of parasitism because the worms are being benefited by being provided a good environment with food. The person, however, is harmed from this interaction.

In this food chain, the producer is grass. Gazelles are herbivores so they are the primary consumer that consumes grass. The secondary consumers are hyenas that eat gazelles. Cheetahs are at the top of the food chain and they eat hyenas. Finally, sunlight provides energy for all this to happen.

Trees take in carbon dioxide and combines it with water and sunlight in a process called photosynthesis. Photosynthesis creates sugar for the plants and releases oxygen for other organisms to breath in.