3. What are three things that should be considered when selecting participants for an experiment?
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Arm circles are often effective dynamic stretches for swimmers because they

Marcus's genotype for eye color is bb. olivia has brown eyes, but she is heterozygous for the trait. what percentage of the children have blue eyes? if violet has green eyes and jonas has brown eyes, what is claudia's genotype? how many people in the family have blue eyes?

If human development really does proceed continuously, what value does stage theories of development have?