Answer:
False
Explanation:
Stem cells are different type of cells in human body that can develop into different other body cells like muscles cells or brain cells and they gave the capability to renew themselves through mitotic cell division.
Stem cells are not lost in childhood but can be use to treat diseases or infection, it can be use to grow new cells and replace damaged body cells.
As moist air is lifted, it cools and water vapor condenses to form clouds. ... The balance of water that remains on the earth's surface is runoff, which empties into lakes, rivers and streams and is carried back to the oceans, where the cycle begins again
Answer:
pH meter and pH paper.
Explanation:
There are a few other ways that are commonly used, including titration, but most are tedious and require detailed hands-on work. A pH meter is normally assisted by the use of a computer or a digital user interface. The use of pH paper can be likened to the use of a Galileo thermometer.
Answer: There are about 120 million rods in the human eye and about 6 million cones.
Explanation:
The retina of the eye consists of two photoreceptors which are called as rods and cones. The rods are numerous and are about 120 millions in numbers, these are more sensitive then the cones. The rods are sensitive to the light intensity but are less sensitive to the color.
There are about 6 million cones in the eye and these provides sensitivity towards the detection of color. These are more concentrated in the spot which is called as the macula.