Emma+Harlie+Jessica

BIOTIC RELATIONSHIPS 1. Two examples of mutualism are, clownfish and an anemone and humans and plants. The clownfish gets a home and it lures in prey for the anemone. The human gives the plants carbon dioxide and the plants give back oxygen. 2. Two examples of commensalism are, and and cattle and sterlings. Barnacles house on whales and are brought to food on the whale while the whale is not enhanced or hampered. Sterlings perch on cattle and eat the bugs while the cattle do not gain or are not crippled by the birds.

3. Two examples of parasitism are, ticks and dogs and tapeworms and cats. Ticks feed off the dogs and may cause severe illness or the transfer of diseases, the dog does not gain anything and is hindered by the tick. Tapeworms live inside cats and feed off them and may cause death, the cat is hindered by the tapeworm.



BIOTIC FACTORS

1. Three examples of biotic factors are, a quails prey, insects and seeds, and its predator, the coyote. The quail surviving depends on if there is enough food to eat so it depends on insects and seeds. The quail may also become overpopulated if the coyote didn't hunt it, or if the coyote hunts to much they may become extinct, so the quail depends on the coyote too.

2. Three organisms of the Platte River Ecosystem are, gar, hawk, and coyote. The gar's niche is to eat weeds and some material toxic to other fish thus cleaning the river, their trophic level is first order consumer, omnivore. The hawk's niche is to eat the fish to keep the population down, they are a second order consumer, carnivore. The coyote's niche is to eat the hawk and keep the population down, they are third order consumers, carnivore.

3. FOOD CHAIN Grass, primary producer, producer

Mouse, herbivore, first order consumer or herbivore Fox, carnivore or second order consumer Coyote, carnivore or third order consumer

Mountain Lion, carnivore or third order consumer

Bear, omnivore or fourth order consumer Mushroom, decomposer