Most moths of a particular population died when the chestnut blight fungus that they were dependent on got wiped out. But some moths did survive. Which mechanism explains the reason for this?

Answer;

C. Codominant

Explanation;

• Codominance is a phenomenon where alleles of a particular gene pair in a heterozygous are fully expressed. The results is a an offspring with a phenotypes which is neither recessive nor dominant.
• An example of codominance is the ABO blood group system. An individual with AB blood, which means that both the A allele and the B allele are equally expressed.

Ozone layer contributed to the development of the eukaryotic cells. The ozone layer protects the eukaryotes from harmful ultraviolet rays. These rays are very dangerous for the eukaryotic cells.  

Ozone layer protects the eukaryotes from the mutation which could be very frequent when the cells were exposed to ultraviolet rays. The ozone layer protects the cells from harmful ultraviolet rays reaching the earth.

Answer:

Producers are responsible for providing energy to the rest of the ecosystem.

Explanation:

Producers are literally the basis of all food chains, if they do not exist, it is impossible for energy to pass from one trophic level to the next.

Producers are represented by plants that, through photosynthesis, produce enough energy to be passed to all living organisms, through the food chain. For this reason, it is important to maintain the stability of the producing population, since the stability of the entire ecosystem depends on it, since it is through it that energy is provided for the rest of the ecosystem.