Describes amino acids that are joined together.
Lipid
Nucleic acid
Polypeptide
Gene

What best explains the inability for life to exist in earth early atmosphere

Communication and transportation have improved as a result of scientific advancements. select the best answer from the choices provided of mark this and return save and exit next

Alaboratory investigation included examine prepared slides of pond water singled celled organisms with a nucleus and either cilia or flagella were visible these organism probably belong to the kingdom