Comets move in regular , elliptical orbits
Medicine is that branch of science that helps us to know a human body and treat it in the right way to stay healthy as long as possible. So there are different factors which intrigue a person to chose medicine as their career of choice.
<h3><u>Explanation:</u></h3>
Medicine practically deals with knowledge about different disabilities as well as diseases that can attack a person to disturb his normal way of life. And for knowing the diseases, the medical practitioner needs to the normal functions of human body too. This fact attracts many person who are keen to know which mechanisms are going inside their body without even their knowledge.
Medicine also deals with different chemicals and compounds that are actually helpful in curing a disease. Thus, helping a person who is suffering from so much of pain because of a disease is so satisfying. There are many doctors who actually help different poor people who can't afford a good medical treatment. So medicine as a career is full of knowledge and experience, so worth taking as well.
Mercator projection, type of map projection introduced in 1569 by Gerardus Mercator. It is often described as a cylindrical projection, but it must be derived mathematically. The meridians are equally spaced parallel vertical lines, and the parallels of latitude are parallel horizontal straight lines that are spaced farther and farther apart as their distance from the Equator increases. This projection is widely used for navigation charts, because any straight line on a Mercator projection map is a line of constant true bearing that enables a navigator to plot a straight-line course. It is less practical for world maps, however, because the scale is distorted; areas farther away from the Equator appear disproportionately large. On a Mercator projection, for example, the landmass of Greenland appears to be greater than that of the continent of South America; in actual area, Greenland is smaller than the Arabian Peninsula.
Answer:
<h2>letter A</h2>
Explanation:Whittaker placed bacteria in their own kingdom, Monera, because of fundamental organizational differences between prokaryotic bacterial cells, which lack membrane-enclosed nuclei and organelles , and the eukaryotic cells of other organisms that possess internal membranes. Plantae, Fungi, and Animalia consist of complex, multicellular eukaryotic organisms that differ from each other in details of cell structure and in how they secure and process energy. Protista is a collection of single-celled eukaryotic organisms and simple multicellular forms, some animal-like, some plantlike.
<h2>letter b</h2>
Molecular evidence, particularly from ribosomal ribonucleic acid (RNA), suggests that the five-kingdom scheme is also too simple. Some biologists believe that Protista should be partitioned into three or more kingdoms. Similarly, kingdom Monera contains two very biochemically distinct groups of prokaryotes: archaebacteria, and eubacteria. A proposed system acknowledges this ancient evolutionary split by creating a higher level of classification, domain, above kingdom. This system distinguishes three domains: Archaea, Eubacteria, and Eukarya (containing protists, plants, fungi, and animals).
