Both prokaryotic and eukaryotic cells have a nucleus and ribosomes.
Answer:
To survive. Drinking is very important and is required for animals and organisms to survive. It also keeps us hydrated.
A serous membrane contains both epithelial and connective tissue
Answer and Explanation:
1. passive natural immunity
2. decrease
3. passive artificial immunity
4. His body contains antibodies from his previous exposure, and his body was able to quickly fight off the infection
5. active natural immunity
6. B cells
7. Neutrophils
