Plants on Earth provide food, some even provide shelter to some animals, and plants such as trees provide oxygen to the environment.
A comet always points in the opposite direction of the comet hence why it’s called the tail
I think the answer would be pesticides... i see you selected it though. was that a wring answer?
Answer:
E. Gene is amplified by multiplication of cloning host
Explanation:
PCR is a very powerful technique that can help us to amplify exponentially one gene from a very small sample of DNA.
As seen in the attached image, the process begins with a single DNA molecule, for the first cycle, that DNA molecule denaturalizes into two strands, the primers bind to their complementary sides and then the DNA polymerase builds the new DNA strands. The number of copies of the gene that can be obtained with each cycle are 2ⁿ copies, where n is the cycle number.