Answer:True
Explanation:Viruses are a very huge problem these days as they are a 100 times bigger than an actual blood cell or bacteria a virus is just a bunch of bacteria in one big bunch
Answer:
1)small organic molecules
2)polymers
3)protocells
4)RNA
5)natural selection
6)DNA
7)stromatolites
Explanation:
Answer:
Most cancer-causing DNA changes occur in sections of DNA called genes. These changes are also called genetic changes. A DNA change can cause genes involved in normal cell growth to become oncogenes. Unlike normal genes, oncogenes cannot be turned off, so they cause uncontrolled cell growth.
The code Z21 means that a patient has tested positive for HIV but shows no symptoms.
