From what I googled, in the interior of a cell wall there is a cell membrane
D. Cell Membrane
B is not part of the cell theory; there are many types of cells that do not have cell walls, so the statement cannot even be generally true.
25 percent if you make a punnet square for this it would help a lot. Homo is same and if its dominant it would be big letter like FF and homo recessive would be ff you would get FF,Ff,Ff,ff in the punnet square.
Answer:
Paleontologists didn't have the technology in that time to get a good estimation on the events. Back then, they had to rely on natural sources "markers" that made the estimations. Those estimations weren't accurate. Today's measures are accurate.
When antibiotics kill too many good bacteria in the digestive tract fecal transplants can help replenish bacterial balance