A change in species overtime by which descendants come to differ from their ancestors Evolution

Biology

Ecosystem

Ecology

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.