Answer:
what is microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eye.
FUNCTIONS : The microscope is one of the most important tools used in chemistry and biology. This instrument allows a scientist or doctor to magnify an object to look at it in detail. Many types of microscopes exist, allowing different levels of magnification and producing different types of images
Answer:
Mutualism
Explanation:
both humans and plants benefit from it because we breath out carbon dioxide
The answer is a. accessible population because an accessible population is the portion of the target population to which the researcher has reasonable access.
NASA did not invent the smoke detector.
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.
