What do you think? So why don't t apes walk upright like us?

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

Which of the following is a limitation of a clinical trial? a.)amount of random assignments b.)hospital cost c.)number of test tubes d.)amount of peer review