Answer:
that aren't sex chromosomes ( dont know which one because there are not any answer choices)
Explanation:
Polymerase chain reaction to amplify the DNA would be the technique used in the blood lab.
The heart is an organ (rather than a tissue) because it has an important (and complex) function. Tissues don't have nearly as many things in it as the heart does.
Hope this helps! :)
Answer: Plants respire at night.
Explanation:
brainliest me
