Answer: A Chemical.
Explanation: Chemicals are a compound or substance that has been purified or prepared, especially artificially.
b. Transgenic bacteria can produce human proteins in large amounts.
c. The human proteins produced by transgenic bacteria last longer than those produced by humans.
d. Transgenic bacteria can produce human proteins used to make plastics.
It's actually Natural Selection
Answer:
a. shorten
Explanation:
Inability or failure for joints to move through their entire range of motion is caused by constrictions. These constrictions often results when the excess adipose tissues that surrounds the muscles and ligaments are not in required adequate proportion. These constrictions can be caused by ageing, fatigue, muscular diseases etc. As a result of these constriction in the joints, let say for example, the knee joint, the muscle and ligaments tends to shorten in length.
B. genetic drift
C. sexual selection
D. gene flow
Adaptive evolution means evolutionary changes in an organism that make it suitable for its habitat. Natural selection is the factor that can lead to evolution for change in body color that enabled animals to better hide from predators.
A genetic trait that helps organisms to increase their reproductive success are adaptive traits. It is a type of natural selection.
Adaptive evolution can be done by following process:
Thus,the correct option is A.
For more information about adaptive evolution, visit: