Answer:
The temperature decreases with the rise in altitude in the troposphere.
The temperature increases with the rise in altitude in the stratosphere.
Explanation:
- Troposphere is the layer of atmosphere, closest to the ground.
- It has maximum number of gases.
- Troposphere gets heated up due to the radiations reflecting back from earth.
- That means the layer of troposphere nearer to the earths surface is warmer than the higher layers.
- Thus the temperature decreases with rise in altitude in the troposphere.
- Troposphere is followed by a troposphere. This is a transition zone between troposphere and stratosphere. Here no changes takes place with rise in altitude.
- Second layer of atmosphere, that lies next to troposphere is stratosphere.
- Stratosphere has similar composition as that of the troposphere except for the presence of the layer of ozone in it.
- The stratosphere gets heated up due to the trapping of heat by the ozone layer.
- Ozone gets heated up due to the ultraviolet radiations of the sun.
- That means the higher layers of the stratosphere is more heated up than the lower layers.
- Thus, With increase in altitude the temperature also increases in the stratosphere.
The study of relationships and the evolutionary history of various groupings of species is known as phylogeny. The goal of phylogeny is to reconstruct the evolutionary course of all species on Earth. A phylogenetic tree also learned as a cladogram, is a schematic diagram used to show the alleged evolutionary relationships between taxa. Diagrams of phylogenetic trees are based on cladistics, or phylogenetic systematics, hypotheses.
Organization of life, according to taxonomy, divides creatures into three domains:
The Eukarya domain are the most easy because they are large enough for their morphological features to be easily seen.
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Answer:
The force produced by the output piston is 400 N.
Explanation:
Given;
area of the input piston, A₁ = 50 cm²
area of the output piston, A₂ = 200 cm²
load on the input piston, F₁ = 100 N
Let the force produced by the output piston, = F₂
From Pascal's principle, the ratio of the input force to the input area is equal to the ratio of the output force to the output area.
Therefore, the force produced by the output piston is 400 N.
Answer:
The oxygen dissociation curve represents the percentage saturation of Hb with oxygen at different partial pressure of oxygen. The different partial pressures gives sigmoid shapes to the curve. When this curves shifts to right, it indicates low affinity or binding of oxygen by the Hb. it also indicates the unloading or releases of Oxygen by Hb molecules at condition of low pressure. e,g in the muscles during strenuous exercise.However, when the curve shifts to the left, this indicate high affinity for oxygen, great binding, at high partial pressure of oxygen.e,g in the lungs to take oxygen and releases CO2.
Therefore in this scenario, the statement -. <u>During strenuous exercise, the oxygen-hemoglobin dissociation curve shifts to the right.</u> is correct. because oxygen is needed by the muscles therefore ,oxygen should be less binded by Hb, decrease affinity and easily unloaded to muscles.
<u>The statement </u>This rightward shift reflects an increase in the affinity of hemoglobin for oxygen and favors loading of O2 into hemoglobin in the lungs is wrong.
As explained above the rightwards shift indicated low affinity of Hb for oxygen(unloading)and favours unloading at the muscles because during strenuous exercise the partial pressure of oxygen is very low(but that of CO2 high) in the muscles which favours low oxygen molecules binding by Hb, and easy release to respiring cells.
Explanation:
