Freedom in American history and
Answer: As each cell differentiates, the <em>DNA </em>changes so that each type of cell has different <em>DNA</em> once it reaches maturity. Mutations in the cells’ nuclei lead to new combinations of <em>DNA</em>, resulting in different shapes and functions in the different types of cells.
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Transpiration is the main driver
Answer:
D. unnatural scream
Explanation:
The Bigfoot is a an animal around there's lot of debate, as there are thousands of sightings, but not conclusive proof that it actually exists, thus it falls into the category of mythological creatures for the time being. This creature has been described by thousands of people that claim to have seen it or hear it, and the descriptions are pretty much the same, very tall, hominid-like, bipedal, dark fur, very quick, and terrifying. Something else that is a specific feature of the creature is the sounds its make, as everyone has said that it produces incredibly powerful unnatural sounding scream. People have said that they have frozen from fear after hearing those sounds, and that whenever that sound occurs all other animals run away frightened in the opposite direction.
Answer:
The main function of the lungs is the process of gas exchange called respiration (or breathing). In respiration, oxygen from incoming air enters the blood, and carbon dioxide, a waste gas from the metabolism, leaves the blood. A reduced lung function means that the ability of lungs to exchange gases is reduced.
