Which of the following are parts of the cardiovascular system?
a) Blood
b) Heart
d) Blood vessels
Choose: a); b); d)
Answer:
u have to find the circumference diameter and radius of the two balls
Explanation:
<em>A megaphone used by a cheerleader can allow people on the opposite side of a field to hear her better because;</em>
D. Solid objects can change the direction of sound waves; megaphones allow users to determine the general direction of the sound.
<u>Determination of the general direction of the sound lessens its dispersion and thus, it reaches the observers at a higher intensity, hence it being louder.</u>
C put the crew in state of hibernation. Also the crew can also be put into airtight space suits
I think the correct answer would be an amino acid. Edgar surely had found a new type of amino acid. It is known that there are about 20 amino acids present. These are the monomer units for proteins. Amino acids are important substances for living organisms.
