We can’t see the picture :(
Maybe post another question but with the picture
Explanation: The shape of a river's stream bed affects the speed and eroding power of a river by influencing the amount of friction between the water flowing through the river and the stream bed below. Friction is the force that opposes the motion of one surface as it moves across another surface. In a river, there is friction between the flowing water and the stream bed beneath it. Where a river is deep, less water comes into contact with the stream bed, so there is less friction. The reduced friction means there is less opposition to the water's motion, so the river flows at a greater speed and has more kinetic energy for erosion. On the other hand, where a river is shallow, more water comes into contact with the stream bed, so there is more friction. The increased friction means there is more opposition to the water's motion, so the river flows at a lesser speed and has less kinetic energy for erosion. Also, the roughness of a stream bed covered with boulders and other obstacles causes the water to flow through the river in a turbulent fashion. This could cause the river to move slower in some cases or erode more in other cases.
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I believe the answer is a, b, c, and e. So sorry if I am wrong!
The nervous system is responsible for the many actions and movement of the body. It is an organ system that sends and receives, even also influences many cellular and organismic phenomenon.
A nerve damage at a specific area for example a nerve damage was incurred for your right hand, since the nerves in that area were destroyed or were paralyzed the dendrites are unable to receive and the terminal buds are unable to send a specific neurotransmitter called the acetycholine for the muscle cells to initiate and process the enzyme which enables the muscle to interact and react.
RNA has a ribose sugar instead of deoxyribose sugar like DNA. RNA neucleiotides have a uracil base instead of thymine.
