Answer:
Many scientists favor the RNA world hypothesis, in which RNA, not DNA, was the first genetic molecule of life on Earth. Other ideas include the pre-RNA world hypothesis and the metabolism-first hypothesis. Organic compounds could have been delivered to early Earth by meteorites and other celestial objects
Answer:
Carbohydrates, proteins, and nucleic acids are built from small molecular units. The small molecular units are called monomers
Explanation:
I'm not really sure if that was what you were looking for, but I remember learning this in biology. I'm sorry if this doesn't help.
Ya I think it’s the 4th to
Answer: Organisms interact with the nonliving parts of their ecosystem to get food, energy, and other resources that help them survive. The nonliving parts of the ecosystem are called abiotic factors. Sunlight: Sunlight provides energy that plants and certain bacteria absorb to make their own food.
