The answer is <span>Determine why the beetle is eating one tree but not the other.
The botanist should first d</span><span>etermine why the beetle is eating one tree but not the other. By determining that, he will understand what connects beetle to the tree. This will also explain does the tree benefits from this interaction or not.</span>
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.
The neuroendocrine system combines brain actions and and other bodily functions. In the brain, the hypothalamus maintains the balance (homoestasis) which affects other functions of the body such as metabolism, regulating reproduction, utilization of energy, drinking and eating behavior, blood pressure and osmolarity.
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Endocrine. Because insulin is a hormone that are produced in the endocrine gland such as pancreatic gland
The pollen grain is actually the male gametophyte generation of seed plants. Inside the anther, pollen mother cells divide by meiosis to form pollen grains whose nuclei contain half the number of chromosomes characteristic of the parent plant.
(hope that helped answer the question)
