In certain rats, black fur is dominant over white fur. if two rats that are both heterozygous for fur color have babies, what would their offspring be expected to have? A. two different genotypes and three different colors
B. four different genotypes and two different colors
C. three different genotypes and two different colors
D. three different genotypes and three different colors

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.