Answer:
Exercise. People who exercise regularly live about five to seven years longer than those who are inactive
Watch Your Weight
Don't Smoke
Get Enough Sleep
Use Caution If You Drink Alcohol
Eat Well
Manage Stress
All protozoans are unicellular (are a single cell). Similar to the plant-like protists, protozoa are found in nearly all aquatic habitats. Protozoa play a key role in maintaining the balance of ecosystems. They are an important food source for organisms higher up in food chains.
The answer is B. Cell membrane and cytoplasm
Prokaryotes and virus don't have a nucleus, eukaryotespecially have a nucleus. Viruses can't replicate without a host cell that is eukaryotic or prokaryotic