As you add steps to a purification scheme, the purity of the biomolecule increases as the yield and the cost .

electronic measurement tools display data on a screen after waiting for several minutes.

while some business owners prefer manual record keeping systems, most businesses use an electronic record keeping system - making it easier to capture information, generate reports and meet tax and legal reporting requirements.

explanation:

the answer would be d

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle