Because of the germs and smog from the polluted air molecules is bad .
Answer:
Explanation:
Water reacts with Carbon dioxide to form Carbonic acid, please see equation below:
H2O (water) + CO2 (carbon dioxide) ⇄ H2CO3 (carbonic acid)
Carbonic acid is a weak acid and some of it dissociates to Hydrogen ions and Hydrocarbonate ions, please see equation below:
H2CO3 (carbonic acid) ⇄ H+ (hydrogen ions) + HCO3-
Answer:
The correct answer is- C. allows new species to occupy different habitats.
Explanation:
Adaptive evolution is a type of evolution that allows the generation of new species from an ancestral species. This evolution occurs mainly due to the separation of habitat between two populations of species.
So when some members of ancestral species get new habitat which is different in ways like in food availability, food type, environment, etc then this isolated population adapts to the new environment by doing changes in their gene which results and the development of new species. So the correct answer is C.
Answer:
It is required that the seed region of the processed dsRNA molecule bind to the mRNA of mex-3 in order to inhibit its translation
Explanation:
Double-stranded RNAs are small interfering non-coding RNAs (about 20 nucleotides in length) that, after processing, can bind by complementary base pairing to RNAs and thus inhibit protein translation by a mechanism referred to as 'RNA interference' (RNAi). The base pairing is not always perfect; however, the guide strands of dsRNAs can conserve their ability to inhibit the translation if the complementarity is enough good to match target RNA sequences. The critical region in the dsRNA that is required to bind target RNAs is known as seed region, and consists of 6 to 8 nucleotides in length.
