Bones contain three components that in itself make it strong and flexible. They are collagen, calcium phosphate, and living bone cells. Collagen gives bones their structure, calcium makes bones strong, and cells generate more bone cells to fill up weakened parts. Calcium intake from food supplements and milk are also good for the bones because it can strengthen them more and make the skeletal system protected from bone irregularities and problems while growing. Vitamin D is essential for the absorption of calcium in bones. In order to offer support to the muscles and tissues of the body, bone growth is very crucial, because a weak bone cannot make the body function well. Comments Report
A map that locates genes and markers based on the actual length of the dna sequence is called a physical map. In the physical map <span>molecular biology techniques are used to examine </span>DNA<span> molecules directly in order to construct maps showing the positions of sequence features.</span>
Answer: c
Explanation: Stomata are present on the stem and the leaves of the plants. These are tiny pores in the skins of the stem or the leaves. Plants take carbon dioxide through these stomata and gives oxygen through these pores. So this is the correct answer.
False, there are lots of biomes on earth.
1/4. Make a Punnett square and plug in the two heterozygous genotypes of the parents, put them together and you get the following possible genotypes: AA, Aa, Aa, and aa. One of those is homozygous dominant. 1/4 or 25 percent.