Answer:
The correct answer will be option-B.
Explanation:
A synapse is a junction or point of contact between two neuron cells in the human body.
In conditions when the synapses are overproduced in the brain during development is followed by the reduction of this synapse. This process of the gradual reduction of the overproduced synapse is known as the <em>synapse pruning.</em>
The synaptic pruning is highly dependent on the area of the brain in which synapses are present, experience and learning like the synaptic pruning is observed in the 4th to 6th year of life in the area which is involved in the auditory and visual perception.
Thus, Option-B is the correct answer.
Answer:
Take a message to be returned as soon as possible.
Explanation:
Okay, in the question above we are given that someone or Physician because of an urgent question that came up has to make a phone call to another physician in another location but unfortunately the physician that the person called was busy and in the middle of a patient exam. The assistant of the physician that was called does should never interrupt his or her boss who is examining a patient at that moment but the assistant can just tell the physician that called that he or she should leave a message instead and he or she(that is the assistant) will relay the message to the office physician as soon as possible. That's a normal ethics of his or her work and the patient is important.
The answer is B. crossing over during prophase I
<h2>Visible spectrum of photon emission</h2>
Explanation:
- An action spectrum is ordinarily plotted so that the "activity" appeared on the y-axis is estimated with an equivalent number of photons at every wavelength of the unmistakable range. In any case, our sun doesn't emanate equivalent quantities of photons at every wavelength.
- Rather, the sun transmits the most photons in the yellow piece of the range, with moderately fewer photons discharged in the red and violet-blue pieces of the range. In this manner, the red and violet-blue districts of Engelmann's action spectrum were estimated with fewer photons than in the yellow piece of the range.
- To correct for this, you need to consider how expanding the quantity of photons in the red and violet-blue pieces of the range - to coordinate the emission level in the yellow part- - would change the measure of oxygen created, and therefore the number of microscopic organisms that amassed, in the red and violet-blue spectral region. The rectified action spectrum would show higher tops in the red and violet-blue pieces of the range, yet the plot in the yellow piece of the range would be around equivalent to Engelmann's.
<h2>The Cardiac cycle</h2>
Explanation:
Correct order is: 3,5,6,4,2,1,8,7
The cycle of events that happen in a single heart beat is called Cardiac cycle. Basically, it refers to repeated pattern of contraction and relaxation of the heart.The contraction of heart is called systole and the relaxation of heart is called diastole. The cardiac cycle includes systole and diastole of atria as well as systole and diastole of the ventricles. When heart rate is about 75 beats per minute, a cardiac cycle takes 0.8 seconds.
The order of events is cardiac cycle is :
- beginning of atrial systole
- completion of ventricular filling.
- beginning of ventricular systole.
- closure of AV valve.
- isovolumic contraction.
- opening of semilunar valve.
- ventricular ejection.
- ventricular relaxation.