Well scientist have made the microscope and telescope and we have discover new bacteria and new plant(s) which has help a lot <span />
The excess of DNA is due to <span><em><u>b. insertion</u></em></span><span>
For example of an insertion mutation:
The Klinefelter syndrome is caused by an insertion mutation. It occurs when there is an existence of an excess or extra X chromosome in each cell that may cause an abnormality in the development of males. It usually affects the physical and cognitive development of male with symptoms varying from one person to another. Kids with these type of disorder may experience learning disabilities and even speech and language problems. These kids tend to be quiet and very sensitive. They can also be very passive. </span>
Scientists have discovered the specific mutation that famously turned moths black during the Industrial Revolution. In an iconic evolutionary case study, a black form of the peppered moth rapidly took over in industrial parts of the UK during the 1800s, as soot blackened the tree trunks and walls of its habitat.
Answer: Power plants
Explanation: They release the waste from it into the air
Several sources have noted that Vitamin D is more of a hormone than a nutrient. The substance controls the concentration of calcium that is present in our system especially in the blood. The hormone is essential and vital in strengthen bones.
Hence, the answer to this item is letter A. True.
