Answer: multicellular? try that i'm not 100% sure
Explanation:
Answer:
A jellyfish and other cnidarians would represent <u><em>radial symmetry</em></u>.
Explanation:
In biology, symmetry can be described as the overall shape of the body of an organism.
Radial symmetry can be described as the symmetry which depends upon a central axis. For example, the body of cnidarians.
Bilateral symmetry can be described as a type of symmetry in which the two halves of the body are mirror images to one another. Examples of bilateral symmetry include the body of humans, dogs etc.
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.
I'm assuming this is the same image that was posted before, therefore the answer is "gene flow" which occurs through population groups by natural selection and other factors.