Question

1. how do algae, cyanobacteria, and plants produce their own food? (1 point)

they fix nitrogen from the atmosphere.
they convert sunlight into chemical energy.
they consume other producers.
they exchange rna with other organisms.

Explanation:

Algae, cyanobacteria, and plants are autotrophs. They use photosynthesis. In photosynthesis, they take sunlight (solar energy), carbon dioxide, and water. Then they convert sunlight into chemical energy (glucose). Nitrogen - fixing is for getting nitrogen compounds (not food production). Consuming other producers is what heterotrophs (like some animals) might do if they are secondary consumers. Exchanging RNA has no relation to food - production.

Answer:

They convert sunlight into chemical energy.