Answer:
Pallor is caused by vasoconstriction of the dermal blood vessels
Explanation:
Pallor is paleness or wanness usually caused by vasoconstriction of the dermal blood vessels.
In other words. A deficiency in the color of the face.
Answer:
The main purpose of the circulatory system is to transport blood, oxygen, nutrients and hormones to and from different cells and tissues throughout the body.
Explanation:
This system works hand-in-hand with the respiratory system to facilitate the exchange of oxygen and carbon dioxide within the blood per the alveoli in the lungs.
Answer:
B. The prefixes chemo- and photo-: define the electron source
Explanation:
The prefix chemo is related to <u>chemical/drug</u> and photo is related to<u> light</u>. This can be proved by analysing the following examples:
Chemotherapy = therapy with chemicals
Phototherapy = therapy with light
Anatomical or molecular homologous structures
