During photosynthesis, plants use energy from the sun to change carbon dioxide and water into food and oxygen. the oxygen that is produced during photosynthesis is essential to the survival of many living organisms because it is needed for

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?

Explain why scientists use the word dominant for certain traits.

1. isogamy 1 organisms with gametes of the same size and shape 2. anisogamy organisms with gametes of different sizes and shapes 3. oogamy 2 organisms with gametes of the same shape but different sizes 4. gonads gamete-producing organs in lower plants 5. gametangia gamete-producing organs in animals