Answer:
Algae and fungi do not have cell wall and many other organisms do not have a cell wall.You can check it out on google for more examples.
Explanation:
Depends on the type of energy. If it is biological energy the answer would be yes since it comes from the sun
Each on diverged from the common ancestor and has its own accumulated mutations. If they have six differences each it would be 10,000 years per one mistake giving you a total of 60,000 years ago.
Answer:
Farming can lead to the loss of natural habitats.This is destroying natural habitats and changing the very nature and look of our rural landscape.
hope it helps