Answer:
Commensalism
Explanation:
Long-term biological activity in which advantages are obtained by members of one species while those of the other species do not benefit or are harmed.
Answer:
The presence of starch in leaves is testing with the Iodine test.
Explanation:
First, chlorophyll is removed from the leaf by boiling it in alcohol.
Then, two drops of iodine solution are put onto the leaf.
If the colour changes to blue, it indicates the presence of starch.
If it does not, there is no starch.
I hope this helps!
-Bella
<em>BrainlyBluebell</em>
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.
