C. Redundant organs present in an organism, which have been functional in the organism's ancestors.
My love for you will withstand a nuclear explosion
Answer:
Option C, open chemically gated sodium ion channels.
Explanation:
The nicotinic receptors are present on the muscle cell membrane. These receptors belong to the class of cholinergic receptor which binds to the acetylcholine and opens the gated channel to allow transfusion of cation through it. These actions of the receptors are stimulated by the neurotransmitter. Nicotinic receptors are very fast at acting and hence are more prevalent at the neuromuscular junction.
Hence, option C is correct
Answer:
As drogas diuréticas ajudam os rins a aumentar a quantidade de sal e urina removida na urina. Isso é pertinente porque o excesso de sal no corpo pode levar ao aumento da pressão nos vasos sanguíneos. O excesso de líquido não necessário ao organismo é assim removido. Esses medicamentos tornam-se eficazes dentro de 2 horas após a ingestão. Um exemplo típico é a clortalidona.
Number 1 is fraternal (also known as dizygotic)
also sorry i don't know the second one