Which of the following resulted from a genetic variation that was favored by natural selection?

A. cancer in a lab rat

B. the long neck of a giraffe

C. the small size of a Chihuahua

D. smoothness of a river rock

Humans look different from each other although they are the same species. This is an example of which of the following? Ecosystem diversity Genetic diversity Natural selection Species diversity

The primary function of mucus in the stomach is to The primary function of mucus in the stomach is to emulsify fats. protect the stomach cells from gastric juices (e. g., HCl). neutralize stomach acid. activate pepsinogen to pepsin.

The water on the Earth today has been sustaining life for millions of years.

The court has found that a registered nurse (rn) harmed a patient by violating his rights. the nurse is ordered to pay the patient a large sum of money. the court has determined that the nurse has committed a:

What is the best example of Newton's First Law Of Motion?

What happens when the heart muscles are damaged due to lack of blood supply? a. choking b. heart attack c. slurred speech d. stroke

What is the difference between succinate dehydrogenase and other dehydrogenases?

Some plants close their leaves for protection when they touch this is example of which trophism

Which is the most likely outcome of an increased climate temperature? A. Lowering ocean levels B. Unstable weather patterns C. Decreased flooding D. Growth of ice caps

12. Where in the world is there the most water?