Answer:True
Explanation:
Nerve impulse must reach a certain threshold in a neuron before action potential can be generated to intiate conduction of action potential.
Therefore if mutiple impulses are generated and these are not upto thresholds , no matter how strong the stimulI are-NO ACTION POTENTIAL WILL BE GENERATED.
THIS IS ALL OR NONE PRINCIPLE
The all or none hypotheses can be best explain with flushing of the water closet after using it. If required volume of water is not pumped into the water closet storage above, no matter how long the handle is push, FLUSHING WILL NOT TAKE PLACE.Thus the threshold volume of water must be met.
Answer: Option A.
Telephone conservation.
Explanation:
It is telephone conservation because it is analogous to synaptic signalling because it involve a personal conversation between a person who is far away or very distant and both the communicator and the recipient are able to receive message between each other or they are able to communicate their thought which is synonymous to synaptic signalling.
Cells connect to each other to communicate to each other over long distance through these three main ways and they are gap junctions, tight junctions, and desmosomes.
Don’t copy this word for word, since teachers will think it’s cheating because I found it on your work’s PDF file, but here is the answer key answer:
Because recessive alleles are written with the same letter but lower cased of the dominant allele.
Hope this helps!
Answer:
The answer is A
Explanation:
You can tell that rocks are older or younger depending on if other layers overlap. B is the oldest because all the others cover it, C is the second youngest because D and A overlap it. From what I could tell, when I took the test, it was either A or D, neither overlap each other so I was not sure so I guessed A and got it right. Though it could be looked at that A is smaller than D since its still growing and building.
Expansion of the universe. The expansion of the universe is the increase in distance between any two given gravitationally unbound parts of the observable universe with time. ... To an observer it appears that space is expanding and all but the nearest galaxies are receding into the distance.