Guanine and adenine, structure-wise, are purines.
B. Cells reproduce independently and viruses require a host to reproduce
Answer:
I think it is C.
Explanation:
coli that make the toxin are sometimes called STEC, which is short for “Shiga toxin-producing E. coli.” One especially bad strain, O157:H7, can make you very sick. It causes abdominal cramps,vomiting, and ect
Answer:
Answer is C, the precautionary principle
Explanation:
The precautionary principle is finding a way to cope with likely risk that can occur where scientific understanding is still in process.
It can also be explained as of being conscious when involving in an activity that raises threat of harm to the environment by taking precautionary measures.
Families I think
Because usually when a organism is a a similar type of species the scientific names have some type of similar root. So that crosses out everything else so that’s the only option available
