Why might red blood cells be important to the normal function of the organism's body

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

Regarding most of the narrator’s story, which word best describes the tone?

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?