Abiologist wants to demonstrate how atoms are combined in a dna molecule, a geologist wants to demonstrate how mountains are formed as a result of tectonic plate collisions, and a physicist wants to demonstrate wave motion.

what method would best allow these three different scientists to demonstrate their concepts?
a.
laboratory experiment
b.
collection of specimens
c.
observational field study
d.
model-building

chordata is the answer

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.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.