No, the vast majority of DNA mutations are not physically noticeable, and those that are noticeable physically are mainly cosmetic differences, such as a change in hair color, or heterochromia.
Microorganisms can be divided into two groups:
1. Archea
• Archea are prokaryotic unicellular organisms without cell nucleus or other membrane bound-organelles.
• Their membrane is built from ether lipids, which differs them from bacteria’s cell membrane.
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2. Bacteria
• Bacteria are also unicellular prokaryotic organisms.
• Bacterial cell membranes are made from phosphoglycerides with ester bonds. Bacterial genome is in a form of circular chromosome.
• They reproduce by binary fission or by budding.
Besides, prokaryotes (Archea and Bacteria) a large number of eukaryotes are also microorganisms. Unicellular eukaryotes contain organelles such as the cell nucleus, the Golgi apparatus and mitochondria. Usually, they reproduce asexually by mitosis. An example of eukaryotic microorganism is Protist.
The feature of the bone tissue which allows it to normally withstand lateral stress without it giving or breaking up. Because the bone which receives the most impact, each opposite side stretches, and last but not the least bones are able to cancel them out themselves.
Answer:
The correct option is B. Jean Charcot was the French neuroscientist that helped legitimatize the practice of hypnosis.
Explanation:
Hypnosis can be described as a state in which a person is numb or kind of asleep but is strongly focused to respond to questions being asked by the psychologist. This technique is used by psychologists for the treatment of psychological disorders. Hypnosis has also been known to serve as a therapy for pain management.
Jean Charcot was a French scientist that made up his name by identifying a number of neurological disorders. He is also known to legitimatize the practice of hypnosis for psychological purposes.
Answer:
Is a vicariance event
Explanation:
Even both terms are very similar, there is a difference. A dispersal event occurs when an initial specie travels from one place to another and due to the environmental factors and the adaptation that need to develop to survive will change into different species. In the other hand, the vicariance, is a process in which there is a specie and it lives in a wide are, but it fragments into groups mainly by the continental drift, so with the passing of time it turns into different characteristics, as the human race.
