Answer:
The correct answer is option 3. a nucleus.
Explanation:
The first genetic material present in the early organisms were RNA which was present in the microscopic organisms back then 3.5 billion years ago which means it is normal to have RNA in such microfossils chemical analysis.
Since, the nucleus was not present in early life forms of prokaryotes like bacteria. so, it is unusual to find nucleus in the fossils of stromatolite rocks.
Thus, option III is the correct answer.
Malaria is transmitted among humans by female mosquitoes of the ... The successful development of the malaria parasite in the mosquito (from ... The adult stage is when the female Anopheles mosquito acts as <span>malaria vector</span>.
Answer:
circulatory system is the answer
I believe studying the hydrosphere would be most important because we haven't explored a good majority of it yet so we need to explore our waters before we explore space
You do have an wonderful theory, but what if they already found the cure for cancer cells? but wont tell us because the government wants us to believe there isnt none so that they can either use it on themselves or wait for the future atleast a million people die from cancer everyday but how come they havent "supposedly" found a cure yet?