Climate, Land form/shape and fossils(he was most interested in this)
The tricuspid valve has three cusps that are essential components of the valve. (Hence "tri-" in tricuspid. ) The semilunar valve is called semilunar because each semilunar valve has cusps in the shape of half moons. Hope this helps to contrast their structure!
Answer:
the diaphragm flattens and moves downward.
Explanation:
The correct answer is cocaine.
Cocaine is a strong recreational drug which acts as a stimulant by increasing one's alertness, attention and energy. Since cocaine targets the reward system of the brain, chronic exposure to this addictive substance can cause adaptation of the system and development of tolerance. Development of tolerance leads to the gradual increase of dose, which can lead to irritability, restlessness, confusion and paranoia. Chronic use will also alter the neurological signalling of pain and hunger, which leads to chronic itching and aches and an increased need to eat.
