Answer:
cyanobacteria
cyanobacteria is The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen
Explanation:
Hope this helps:)
<span>Transposons are mobile elements that are very important in the evolution of the eukaryotic genome. </span> <span>For example, transposons are involved in the formation of introns. Evolution often deactivates DNA transposons via RNA interference, leaving them as <span>introns. They are also important in the production of antibody diversity via </span>V(D)J recombination <span>because the mechanism of this recombination is similar to that of some transposons (probably originated from it).</span> Another advantage of these mobile elements is in the formation of interspersed repeats within genomes which are created by transposition. Because interspersed repeats block gene conversion, they protect novel gene sequences from being overwritten by similar gene sequences.</span> <span>Transposons can contain many types of genes.</span>
An individual's ecological footprint is equivalent to the: total amount of food consumed by that individual.
Answer: C) They can contain contaminants that can enter the air during storms or high winds.
Explanation: A is wrong because I got it wrong (Sorry, can't give much explanation there).
B is wrong because water contamination does not directly relate to respiratory health.
D is wrong because fertilizers can impact respiratory health (Explanation seems lack-luster, but I feel like this is common sense).