Molybdenum is the element on the periodic table that has 42 as it's atomic number. It has 42 electrons. Hope this helps! =^-^=
False. Their exoskeletons are made of silica.
Answer:
Motor neurons:
A. Function:
It relay messages coming from the brain or spinal cord to the muscles or organs.
B. Structure:
●Presence of long axons due to long distances the signals have to travel to the muscle its stimulating.
●It's myelinated, to assist the signal in travelling long distances as soon as possible.
Sensory neurons:
A. Function: its sensory receptors respond to stimuli by converting it into an electrical signal to the brain or spinal cord.
B. Structure:
●Presence of long dendrites / axons
● its myelinated
●since it's found in the middle of the neuron it forms ganglia that unites in the spinal cord and aid in involuntary reflexes.
Interneurons:
Structure:
● shorter than motor or sensory neurons
● has branches, a lot of branches consisting of axons and dendrites off the cell body to enable multiple simultaneous between neurons
● It's body is partially myelinated.
●occurs in large clusters of neurons to compensate for its partial myelination to speed up the signal
<span>A cell with a large surface area or with microvilli (which increase surface area) are specialized for absorption. Many cells have different protein markers on their surface to accept certain specific hormones and allow them into the cell, like muscle cells reacting to adrenaline. Muscle cells are long and able to contract, allowing for overall muscle contraction and body movement. </span>
<span>I guess the hormone part I mentioned applies to chemicals; endocrine cells produce hormones that other cells would not. </span>
<span>For organelles, muscle cells don't have many of the organelles that other cells do because of their very specialized functions. </span>
<span>I hope this helps, it would literally take volumes of text books to answer this question completely.</span>
