Question

Conclusions: Complete the following sentences.

Answer 1

Answer:

a. The water changes to yellow, this is because lots of carbon dioxide is produced by the snails.

b. Water remains green, this is as a result of the elodea undergoing both photosynthesis and cellular respiration therefore elodea produces both oxygen and carbon dioxide.

c. Water changes to yellow as lots of carbon dioxide is produced by the elodea as a result of cellular respiration.

d. Water changes to yellow, this is because more carbon dioxide is produced by both the snails and elodea

Explanation:

The type of relationship that is between snails and elodea is a symbiotic type of relationship because the snails feeds on algae and produces carbon dioxide which the elodea takes in. When elodea undergoes photosynthesis, it produces oxygen the snails uses this oxygen during respiration.

Answer 2

Answer:

In the test tubes which contained only snails,in the light and dark content of CO2 will increase.

In the test tubes which contained only snails blue color will occur.

In the test tubes which contained only Elodea in the dark because of photosynthesis CO2 couldn't be observed.