The layers on the top may be younger, while the bottom layers may be much older.
Answer:
DNA
Explanation:
Experiments such as the one by Frederick Griffith in 1928 showed that DNA is the hereditary molecule. How showed that virulent bacterial species could transfer DNA to avirulent species and make them virulent too. This means that DNA determines the characteristic of the individual and can be passed down or across generations.
The answer is <span>D. The Plasmodium life cycle would be interrupted, and the infection could not be passed on.
Mosquitoes are necessary for malaria infection. According to the lyfe cycle, after infected mosquitoes bite a human, they inject saliva with sporozoites into the human circulatory system (stage A). The sporozoites enter human liver where they divide and schizonts are created. Schizonts give birth to merozoites (stage B). Merozoites are released into the bloodstream where invade red blood cells (stage C). Inside the red blood cells, they evolve into trophozoites, they into erythrocytic schizonts, and finally into a new generation of merozoites (stage D). After the red blood cells rupture, they are released into the blood stream (stage E). Therefore, if mosquitoes disappear, the first stage (stage A) will be missing, so the plasmodium life cycle will be interrupted.</span>
