Answer: The reactants in a dark reaction are carbon dioxide (CO2) and water (H2O).
Explanation:
Dark reactions are a type of photosynthetic reaction.
Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Dark reactions occur in the grana of chlorophyll and get energy from ATP and NADPH.
The reactants are carbon dioxide (CO2) and water (H2O).
Natural selection is one of the basic mechanisms of evolution, along with mutation, migration, and genetic drift. Darwin's grand idea of evolution by natural selection is relatively simple but often misunderstood. To find out how it works, imagine a population of beetles: There is variation in traits.
Microscopic, single-celled organisms that have a complex structure similar to animals and plants are known as protoctists.