Science+Fatuma

The science section will include a persuasive letter to the resident about Iramoo grassland and how to care for the area and some answers i did about my community. a) Food Chains.  1. Fruit and seeds.­ Insects →Striped legless lizard→ Snake →Currawong bird→ Cat or fox.  2. Fruit and seeds→ Insects→ Blue tongue lizard →snake →Kookaburra 3. Fruit and seeds→ Insects→ Frogs and tadpoles→ Fat tailed Dunnart → foxes.

b) Food Web is on the big sheet! c) Producers are the plants because they make their own food from the energy of the sun, by a process called photosynthesis. d) Consumers are organisms that get their energy from producers. An organism that eats the plants would be a first order consumer. So the first order consumers are the insects, frogs, rabbits. The animal that eats //this// animal is known as the second order consumer. So the second order consumers are the lizards, frogs, bandicoots, snake and fox and cat.  The animal that eats //this// animal is known as the third order consumer. So they are the snake, Fat tailed Dunnart, Currawong, Kookaburra, fox and cat.  e) Omnivores eat everything like grass and seeds and fruit and meat. Herbivores only eat plants such as grass and seeds. An example from my food web would be a rabbit. Carnivores eat meat so they are the snakes and Currawong bird and Kookaburra and fox and cat. f) Predators eat other animals so they are the snake is the predator of Blue tongue lizard, the Currawong and Kookaburras, fox and cat. g) Prey are the ones the predators eat so they are the lizards, frogs, Fat tailed Dunnart, the Bandicoot and rabbit and Plains Wanderer. h) Ones competing for the same food are lizards, frogs, bandicoot and Plains Wanderer all eat insects and spiders. Insects and spiders and frog and rabbit all eat seeds and grass and fruit. Fox and cat eat same things. I) if number of first order consumers increases they will eat more grass and seeds and fruit. Then there is more food for other things so more second order and other orders get born. If the numbers of first order consumers decreases then all the other orders decrease because not so much food for them e.g. grass and trees. j) If second order consumers all became extinct that means they are all dead. So no food for other animals and they all die too. This means no food for the third order consumers and the fourth order consumers. k) Decomposers are eating the dead animals and dead trees and grass. So they are the insects and flies and spiders, and the earthworms. l) If the rabbits increase in size so there are too many of them they will eat all of the grass. Then the insects and spiders die from no food and everything might die and the rabbits die from no food. m) Introduced species is one that didn’t live there in that country before, and someone brings them from another country. They are rabbits and cats and foxes. n) Biological control is a way to [|control pests] of animals or [|insects], [|mites] , __ [|weeds] __ and [|plant diseases] ) by putting other live things there that will kill the pests. They might put in something that eats the entire weed they want to kill, or special bacteria or fungus that kills certain insects. Sometimes it doesn’t work, like cane toads were got to kill a beetle but they didn’t, and now they are a big pest.

4) we need grass because if there is not grass the mouse will die or won’t find any thing to eat and humans eat plants. Rabbit is the smallest animal that a wolf can eat, wolves can olso eat deer and if a wolf can’t find anything to eat it will die so we should start saving our animals. Every animal eats an animal and if animals can’t find anything to eat they will die for hunger. Even human’s eat different kind of animals. I should say people should stop going to animals habitats and killing them or hunting them they should be aware of what they do. And they should not be cutting down trees from forests because animals need them such us rabbit and the second order consumers need it. i think humans should stop cutting forest trees and should grow trees Introduction Fatuma Back to Maths Page Back to English Page Back To Science Page Back to SOSE Page Back to Conclusion