A solid exerts a force of 500 N. Calculate the pressure exerted to the surface

where area of contact is 2000 cm2

Do all mammals have hair?

What are the fastest-moving celestial objects discovered so far in the universe? a. quasars b. galaxies c. meteoroids d. pulsars

Which of the following results would be more likely if a cell's membrane was no longer selectively permeable? A. Harmful substances can enter the cell and cause mutations in the cell's DNA. B.

The way a particular species of bird constructs its nest is an example of? a learned behavior b and external stimulus c a fixed action pattern behavior

Where does transport in plants occur?

Which of the following is true of an enzyme? (mark all that apply) a. it is a protein b. it is a catalyst c. it binds to many different substances d. it is small compered to its substrates

Which term would be applied to a regulatory condition that occurs when protein is associated with a particular section of DNA and greatly reduces transcription? A) induction B) negative control C) stimulation D) positive control E) activation

1. The reproductive parts of angiosperms are located within the called the and the female part is called the The male part is 2. In angiosperms, pollen produces cells. Pollen sticks to the female and travels down the style to the ovary.

Why would over-inflating the cuff of the sphygmomanometer be a problem for the patient?

Athletes often have a very low resting heart rate. what does this tell you about the health of their heart? explain.