Why do whales, giraffes, and humans all have seven vertebrae in their necks

List two limitations of natural selection

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

What evidence did mendel find that supported his law of independent assortment? a. some traits are controlled by several different genes. b. a trait can be passed on from a parent to an offspring. c. most traits have a dominant form and a recessive form. d. different traits are passed on independently of each other.