Answer:
Pest control is helpful I guess...
Explanation: Pest control uses lots of chemicals and poison stuff to kill those vexing pests but most importantly it kills them its a dangerous job if you don't know what your doing.
True, DNA is DNA, it matters not wether or not it belongs to a plant, you could mix a carrot with a pig (not sure why you would, but you can)
All living organisms are made of only 20 different aminoacids- this is the correct answer! This means that the genetic code only codes for those 20 aminoacids (for example Glutamine and Lysine).
The 20 aminoacids that can form proteins are also called Proteinogenic amino acids.
The answer to this question would be false.
The solute is a substance that was dissolved by the solvent. The amount of solute that can be dissolved is called solubility. The amount of solute mostly small and if it solubility too high it will be precipitated.
There are no rules state that solute should always be the greatest amount.