Answer:
D. Pangaea
Explanation:
He called this movement a continental drift. Wegener was convinced that all of Earth's continents were once part of an enormous, single landmass called Pangaea. Wegener, trained as an astronomer, used biology, botany, and geology to describe Pangaea and continental drift.
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Ans.
Platelets are a type of blood cells, responsible for blood clotting. These cells prevent excessive blood loss from wound as they form plug or clot at the site of injury to repair the damage. Thus, the option). platelets is correctly matched with 'clotting blood.'
White blood cells or WBCs are components of immune system that protect the body from harmful foreign molecules, such as bacteria, fungi, and viruses and harmful body cells, such as tumor cells. Thus, the option). white blood cells is correctly matched with 'fighting bacteria.'
Red blood cells or RBCs are blood cells that transport oxygen, carbon dioxide, and nutrients to the different part of the body. These cells are made up of hemoglobin and protein. Thus, the option). red blood cells is correctly matched with 'clotting blood.'
Plasma is the non-cellular, colorless, fluid portion of blood, composed of proteins, vitamins, antibodies, amino acids, and other micromolecules. It is responsible for viscous nature of blood. Thus, the option). plasma is correctly matched with 'providing viscosity to the blood.'
The parcelization and urbanization of forests bring with them serious consequences for nature and humans beings, although we probably see it as an advance; deforestation, logging, burning, seriously affect the vegetation, and the fauna of a forest, the human workforce , the deviation of rivers and the modification of natural zones seem to be a development of society, but in the long run it affects more to humans than to nature itself, because we are the ones who will not have natural lungs to breathe, and those who soon will be drowned with our own pollution, because there are no forests, no nature to purify the air we need.
Nucleic acid<span> typically contain phosphorous, and nitrogen plays an important structural role in nucleic acids and proteins. The proteins, being made up a diverse set of amino acids, have, in addition to carbon, hydrogen, oxygen, and nitrogen, the elements sulfur and selenium.</span>
<span>A. Keynote address
In the Keynote address is most likely a world-famous surgeon would give his/her speech in order to motivate, inspire and challenge pursing scientists and medical professionals in their pursuit of their successful career and the like endeavors. </span>
