Answer:
2
Explanation:
2 2. 2 2 2 2 2 2 2 2 2 2 2. 22. 2 2 2 2 2 2 2 2.
Both food chains and food webs contain plants and animals so it is not A.
Food chains separate by trophic level not food webs so it is not B
***Food chains show energy flow by each trophic level and food webs do not therefore it is C***
Answer:
The liquid in the kettle will be simmering if it is just below the boiling point. The liquid will be hot, but not boiling, and there will be bubbles rising to the surface.
Explanation:
a. the production of bubbles by the plant when it is in darkness
Explanation:
The indirect observation that will show that the gas produced in this experiment is oxygen is by observing the bubbles on the surface of water in darkness.
Oxygen gas is a by product of photosynthesis. Photosynthesis occurs in the dark and when there is light.
If we observed the bubbles over water, it shows that oxygen gas is given off and the water plant is photosynthesizing. This is a good way to observe the oxygen gas indirectly.
Learn more:
Photosynthesis brainly.com/question/2761166
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