Which group of vertebrates are endotherms and have amniotic egg?

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?

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f

Describe characteristics of a good respitory surface