Option D
polymerase chain reaction (PCR) do Makes more copies of a sample of DNA
<u>Explanation:</u>
A procedure to create several portraits of a distinct DNA section is termed as Polymerase chain reaction. In other words, it is a lab routine handled to compose various representations of a portion of DNA. PCR is extremely explicit and can be utilized to increase, or model, a particular DNA destination from a hybrid of DNA particles.
In PCR, the effect is regularly cycled within a range of temperature variations, which deduct countless models of the destination range to be exhibited. PCR intends to obtain sufficient of the objective DNA region that it can be examined or applied in some other way.
The answer to this question would be: triglyceride
Triglyceride is made of a glycerol with three fatty acids. A similar structure to this would be the diglyceride which was consist of glycerol with two fatty acids. Triglyceride could transport adipose fat or glucose to or from the liver. A high level of triglyceride is linked to heart disease and other atherosclerotic.
Answer: a (weak) acid
Explanation: the solutions are mostly neutral but the pH shown by the indicator as a bright blue means it is slightly acidic meaning the pH is between 6 and 7.6
Snow falling on glacier would be an example of atmosphere-cryosphere interaction.