Answer: 1. Complex viruses
2. Enveloped viruses
3. Polyhedral viruses
4. Helical viruses
Explanation:
Got them all right
Answer:
Complex viruses , Enveloped viruses , Polyhedral viruses , Helical viruses
Between 15,000 and 25,000 years ago.
B
Birds are vertebrates and they also have feathers and reproduce by laying eggs. Additionally, they are also warm blooded.
