Answer: All of these
Explanation:
The polymerase chain reaction (PCR) revolutionized the field of molecular biology because PCR uses a small amount of DNA as a template.Paired with two primers which side to the target sequence, nucleotides, and thermostable DNA polymerase amplifies a specific region of DNA. In this way a large amount of DNA is obtained from a very small sample.
The tilt of earths on its axis is what makes the sun heat up different parts of the earth at different times, thus making wind, and making different weather parents.
China .the ginkgo ,also known as the maidenhair tree, has been planted since ancient time in Chinese
Complex Ecosystem is all of the different types of plants and animals in an ecosystem
Answer:
C i think.......................................
