The four major classes of biological macromolecules are carbohydrates, lipids, proteins, and nucleic acids.
Answer:
Biofuels, Natural Gas, Wave Energy, etc.
Explanation:
what is it? Alternative energy sources is any energy sources that is alternative to fossil fuels
Answer:
C. Vaccination
Explanation:
vaccination is the administration of a vaccine to help the immune system develop protection from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism.
Have a uniform structure or composition, i think maybe
The correct answer is A. Apoptosis is regulated cell death/suicide, not accidental.
