Green plants are the main __________. They produce food by using the Sun’s energy to combine water with gas from the air. This process is __________.
3
Question 3
3.
5
Question 1
1.
A __________chain is a convenient way to show how __________moves among living things in an __________ Here is an example of a food chain.
Question 4
4.
Using these terms: frog, owl, snake, flower, caterpillar, complete the food chain.
The living things are called the biotic factors, or parts, of the ecosystem; the non-living
things are called the abiotic factors. In the grid below, check off which term matches the right heading: either Biotic or Abiotic factors.