Answer:
chromosome number is the precise number of chromosomes for a certain species.
Explanation:
in humans there are 46 pairs of chromosomes .
23 from father and 23 from mother.
Approximately 96% of the Earth's water is salt water in the oceans and seas. Therefore, only 4% of the Earth's water is fresh water.Groundwater is an important source of freshwater storage because <span> It is the only viable source of freshwater in some areas.
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</span></span>b. It is the only viable source of freshwater in some areas.
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Yes and no. Everyone's heart works the same way, is made of the same type of tissue and is located in the same part of the body. However, there are people with diseases who have hearts that are in worse condition and may look different. For example, people with coronary artery disease experience plaque build up in their coronary arteries, which causes a reduction of blood flow to the heart, and in order to treat this they may get a bypass surgery in which another blood vessel from somewhere else in the body, would be used to bypass the blocked blood vessel. In this case the anatomy of that person's heart would be slightly different.
