Answer:
The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.
Answer:
100%
Explanation:
No matter how many factors are in the cross, if an 2 purebred (homozygous individuals) are crossed, (one dominant, one recessive) the dominant phenotype will always be displayed.
Imagine a cross with between two individuals true breeding for 6 traits. One shows all dominant genotypes, one shows all recessive genotypes. The only gametes those individuals can pass on will always produce heterozygotes.
AABBCCDDEEFFGG x aabbccddeeffgg
The first individual can only give ABCDEFG alleles. The second individual can only give abcdefg alleles. Therefore, all offspring will be AaBbCcDdEeFfGg, and will therefore express the dominant trait.
The aveoli opens and closes to allow the oxygen in but keep out food liquids any thing that's not a gas bacicaly
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The function of the respiratory system in the respiratory process is to breathe.
The respiratory system functions for the conduction of air that is rich in oxygen into the lungs and the removal of air rich in carbon dioxide to the outside.
The respiratory system facilitates the exchange of gases through processes such as breathing, inhalation as well as exhalation occurring between the air and blood and also between the blood and body cells. The respiratory system also helps in sensing smell and creating sounds.
The respiratory system controlling breathing is also termed pulmonary ventilation. In the case of pulmonary ventilation, the air is inhaled through the nasal as well as oral cavities. It then moves through the pharynx, larynx, and trachea and finally into the lungs.
Then it is followed by the exhalation of air, which will be flowing back through the same pathway where inhalation occurs. Pulmonary ventilation is triggered by changes in volume and air pressure in the lungs.
During normal inhalation, contraction of the diaphragm and external intercostal muscles takes place and then the ribcage elevates.
Learn more about the respiratory system at
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