ACTIVITY – Food webs and Ecological pyramids

Food webs and Ecological pyramids:
Instructions:
1.
2.
3.
4.
arrange the following organisms in a food chain and draw it
Name three organisms that could be added to the food chain to make a food web
using the numbers provided with each picture create a numbers pyramid for this food chain
Explain if the profile of the pyramid, especially if it isn’t as it should be.
MARINE
Jelly fish
10
Tang
Diatoms
Tiger shark
40
100,000
3
Hawksbill Sea turtle
5
Food webs and Ecological pyramids:
Instructions:
1. arrange the following organisms in a food chain and draw it
2. using the numbers provided with the picture create a numbers pyramid
3. Explain the profile of the pyramid, especially if it isn’t as it should be.
FRESHWATER
Small fish
100
Crocodile
1
Elodea
Murray Cod
Snail
500
15
200
Food webs and Ecological pyramids:
Instructions:
1. arrange the following organisms in a food chain and draw it
2. using the numbers provided with the picture create a numbers pyramid
3. Explain the profile of the pyramid, especially if it isn’t as it should be.
Australian grasslands
Bush Rat
25
Wedgetail
2
Brown snake
5
Australian native
40
Food webs and Ecological pyramids:
Instructions:
1. arrange the following organisms in a food chain and draw it
2. using the numbers provided with the picture create a numbers pyramid
3. Explain the profile of the pyramid, especially if it isn’t as it should be.
Australian Bush 1
Berries
Owl
Possum
Diamond Python
Flies
200
5
50
10
5000
Food webs and Ecological pyramids:
Instructions:
1. arrange the following organisms in a food chain and draw it
2. using the numbers provided with the picture create a numbers pyramid
3. Explain the profile of the pyramid, especially if it isn’t as it should be.
Australian Bush 2
Gum tree weevil
Gum tree
1000
10
Kookaburra
20
Golden Orb spider
200