These wings share a similar shape due to a process known as convergent evolution. The wings, in this case, are analogous structures that developed independently from one another (aka they do not share a recent common ancestor), but the organisms adapted to a common environment. Simply put, their similar problems lead to similar solutions.
Answer:
Explanation:
Transcription is the process by which a DNA nucleotide sequence is used as a template for the synthesis of an RNA molecule, which can be mRNA, tRNA or rRNA, by means of the enzyme RNA dependent DNA polymerase. Transcription in prokaryotes and eukaryotes differs in several respects, so they are studied separately.
1. The precursors of RNA synthesis are the four ribonucleotides 5 ’triphosphates (adenosine 5’-triphosphate, guanosine 5’-triphosphate, cytosine 5’-triphosphate and uridine 5’-triphosphate).
2. In the condensation reaction between the 5 'trisphosphate group of the incoming nucleotide and the 3'-OH group of the last nucleotide in the chain, the incoming nucleotide loses its two terminal phosphate groups. Its α group is used in the phosphodiester bond that binds it to the chain. This reaction occurs at the polymerase catalytic site.
<span>intrauterine insemination is the best choice here.</span>
As a result of diffusion the concentration of many types of substance eventually become balanced on both sides of the membrane.
b.)eventually becomes balanced on both side of a membrane.
<u>Explanation:</u>
Diffusion is the process by which substances move from a region of high concentration to low concentration. It is crucial in several biological processes and is a form of passive transport. Since the movement is down the concentration gradient, passive transport doesn’t require any energy.
When there exists a difference in concentration between the substances inside and outside a membrane the diffusion of substances through the membrane begins. The diffusion continues until the concentration of substances inside and outside of the membrane becomes balanced.