<h2>
Answer:</h2>
<h3>
<em>OPTION</em><em> </em><em>B</em><em> </em><em>IS</em><em> </em><em>THE</em><em> </em><em>CORRECT</em><em> </em><em>ANSWER</em></h3>
<em> </em>
<h2>
Explanation:</h2>
<h3>Nucleocytoplasmic exchange of materials</h3>
<h3>In eukaryotic cells, the nucleus is bound by a double membrane or nuclear envelope. It possesses openings at certain intervals called as 'nuclear pore'. Nuclear pores are large protein complexes regulates the exchange of material between nucleus and cytoplasm, i.e., nucleo-cytoplasmic exchange of materials. </h3><h3 />
The cell cannot go through mitosis and will not produce a new cell
Smog is an abiotic factor affecting a biotic factor(s).
This is because smog isn't a living organism so it is abiotic while humans are multicellular organisms so therefore, they are biotic factors.
Smog has a negative effect on many biotic factors.
Answer:
The natural level of ozone in the stratosphere is a result of a balance between sunlight that creates ozone and chemical reactions that destroy it.
Explanation:
