Answer:
they are Na+, K+ and Ca2+ ion channels.
Explanation:
Ionotropic acetylcholine receptors are also called nicotinic acetylcholine receptors because beside acetylcholine (Ch) they respond to nicotine. These receptors are primary receptors in muscle for motor nerve-muscle communication that controls muscle contraction.
Two molecules of ACh are required for receptor to open. Since the receptors are linked to ion channels, the channels open. Opening of the channel allows positively charged ions to move across it: sodium enters the cell and potassium exits.
Because we have carbon in the ground in the air and every were else
Ultraviolet radiation is the primary cause of sunburns
Answer: c. Self-hatred because of one's homosexuality
Explanation:
Internalized homophobia is a feeling of self disgust or hatred which is also called as a feeling of internal oppression. This appears when a person a person develops sexual desire for the person of a same sex that is development of homosexuality. People become gay, lesbian and bisexual. This is related with feeling of stress, anger and unsatisfaction.
