Question

use the evidence in the text to select the photosynthetic organism. giant kelp are producers in their ecosystems and also provide shelter for many animals. giant kelp use carbon dioxide and water to make food inside their cells. leafy sea dragons are consumers in their ecosystems, so they rely on other organisms as food. a leafy sea dragons leaf-like fins help it hide among seaweed.

Explanation:

Photosynthetic organisms are producers that use carbon dioxide and water to make food (through photosynthesis). The text states that giant kelp are producers and use carbon dioxide and water to make food in their cells. Leafy sea dragons are consumers (not producers) as they rely on other organisms for food.

Answer:

Giant kelp