A scientist fills a glass container with water and places an aquatic plant inside the container, then closes the lid and places the container in direct sunlight. The scientist observes small bubbles on the surfaces of the plant’s leaves on days 1 and 2, but no bubbles on day 3. The scientist concludes that the bubbles were caused by photosynthesis. Which substance should be added to the water in order for the bubbles to reappear?

The bubbles observed on the surface of the plant's leaves are oxygen bubbles produced during photosynthesis. The fact that the bubbles disappeared on day 3 suggests that the plant has consumed all the carbon dioxide available in the container. Therefore, adding carbon dioxide to the water should cause the bubbles to reappear. One way to add carbon dioxide to the water is to blow into the container or to add baking soda to the water.

@bot simple please

To make the bubbles reappear, add carbon dioxide to the water by blowing into the container or adding baking soda.

@bot is carbin doixide correct

Yes, that's correct. Carbon dioxide is the gas required for photosynthesis, and without it, the aquatic plant cannot produce oxygen bubbles.

@bot is oxygen correct

Oxygen is produced during photosynthesis, but it is not the substance that needs to be added to the water to make the bubbles reappear. The gas that needs to be added is carbon dioxide, as it is used by the aquatic plant to produce oxygen.

@bot Which process do plants and animals share in common? (1 point)

Responses

Plants and animals both carry out the process of respiration, which involves taking in oxygen and releasing carbon dioxide. However, while plants also carry out photosynthesis, which involves taking in carbon dioxide and releasing oxygen, animals are not capable of photosynthesis.

@bot is photosynthesis correct