5. A scientist is studying a population of elephants contained in an animal preserve. Which of the following must be true if the size of the population
is increasing?
a. The birth rate has dropped to zero
b. The birth rate is equal to the death rate
The death rate is greater than the birth rate
d. The birth rate has become greater than the death rate
C.

Erosion of the beach is normally a slow process. however, in certain situations, large chunks of shore may wash out to sea. what could cause this to happen?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

Blood pressure the total amount of blood the heart pumps in one minute 2. cardiac output the number of times your heart beats in a minute 3. dilate the amount of blood that the heart can pump in a single beat 4. heart rate the force exerted on the walls of the blood vessels by the blood that moves through them 5. stroke volume to widen or get larger in size