Water is polar. Lipids are non-polar.
Answer:
Polymerase chain reaction, or PCR, is a laboratory technique used to make multiple copies of a segment of DNA. PCR is very precise and can be used to amplify, or copy, a specific DNA target from a mixture of DNA molecules.
Explanation:
It enters through the stoma.
Answer:
voltage decreases and current decreases
A scientist collects data (information found by experimenting)
