Downfolds are calles synclines. B is the correct choice.
The correct answer is the fourth option. The magnification of a specimen viewed with a compound light microscope that has an objective power of 10x and an ocular lens power of 5x is equal to 50x. Magnification is equivalent to the product of the objective power and the ocular lens. Ten times five is fifty.
Answer:
(C) The molecules essential to life today could have formed under early Earth conditions.
Explanation:
The results of Miller's experiments better support the hypothesis that molecules essential for life today could have formed under early Earth conditions. That's because Miller, in his hope, created an environment very similar to primitive earth. This environment consisted of water vapor, hydrogen gas, methane and ammonia, but this environment was able to synthesize organic molecules after receiving a discharge of electric sparks, which can be seen in the theory that explains the origin of life on earth.
The earth's atmosphere had a different composition from today. It is believed to be composed of methane, ammonia, hydrogen and water vapor. Strong lightning strikes and sun-radiated ultraviolet rays would have promoted a wide variety of chemical reactions in the atmosphere, leading to the emergence, among others, of simple organic molecules such as alcohols, amino acids and sugars.
Answer:
An increase in the rate of oxygen that has been removed from hemoglobin could increase the supply of oxygen by the cardiovascular system.
Explanation:
Hemoglobin is a protein, present in the cardiovascular system, whose main function is to remove oxygen from the lungs and take it to the tissues of the human body. Therefore, the more oxygen is removed from the hemoglobin, the greater the oxygen supply. This applies even in the situation presented in the question above, where cardiac output did not increase in the same way as oxygen consumption. In this case, if oxygen consumption is high, the removal of oxygen from the hemoglobin must be increased to supply this consumption.