The best answer is B.
The endosymbiotic theory states that mitochondria and chloroplasts have striking similarities to bacterial cells:
1. they have their own DNA, which is separate from the DNA found in the nucleus of the cell.
2. Both organelles use their DNA for to produce many proteins and enzymes required for function.
3. They are both surrounded by a double membrane.
4. They reproduce just the way bacteria do, replicating their own DNA and directing their own division.
B) sunlight
Sunlight supports life by providing food and warmth which is needed for the population of practically anything on earth to survive
The answer is 23 chromosomes.
hope this helped :)
B. It's water beneath the ground. <span />
