Answer:
Duplication of Hox genes made increased morphological complexity possible.
Explanation:
- The hox gene cluster consists of a group of related genes that function to controls the basic body plan of an embryo and also define the head to the tail axis.
- These are mainly responsible for ensuring the correct position of al the structures in the body.
- Since the anterior-posterior axis all the vertebrates are established by these hox genes this points out to the fact that common information is needed amongst all he vertebrates to define the various morphological variations that occurred.
- The hox genes have shown duplication in the course of evolution and they have undergone a four-fold duplication which has led to the generation fo different structures in the various organism and is thus responsible for the increased morphological complexity.
Researchers suggests that we can avoid self-confirming diagnoses by all the given options.
<h3><u>Explanation:</u></h3>
Self confirming of diagnosis of a disease is actually good for a skilled person, but for general persons, it can be very dangerous and can cause severe outcomes. Different diseases have similar symptoms, but the outcomes are very different.
Some insignificant diseases like indigestion, acidity do have symptoms of loose motion, along with severe diseases like cholera, typhoid, dysentery, and acute arsenic poisoning. So its very necessary for checking the actual cause of the disease by differential tests as well as carefully classifying the symptoms by a professional doctor.
You can tell the vein from the others by holding the leaf up to a light. This makes the leaf a bit see through and the veins will be clearly visible as they do not become semi-transperent. You can also put paper on top of the leaf and rub gently over the paper with crayon to see the veins. They will make darker or lighter lines on the paper depending on if you have the leaf facing up or down.
How_can_you_tell_the_vein_from_other_leaf_structures
The main problem that your central nervous system will try to solve is how to get out of this place.
<h3>B. What is the somatic nervous system probably doing?</h3>
It is releasing stimuli so that the pupil dilates and the blood goes to the muscles, to give greater physical vigor.
<h3>ç. Which part of the autonomic nervous system is likely to be active and what is it doing?</h3>
The autonomic nervous system is a part of the nervous system that functions independently of will and consists of neurons that conduct impulses from the central nervous system (brain and/or spinal cord) to the glands, smooth muscle and heart muscle.
<h3>What are the physiological responses of adrenaline binding in the sympathetic autonomic system?</h3>
Adrenaline increases the overall activity of the heart, increasing both the heart rate and the force of contraction. The heart has β1 receptors in both contractile and specialized myocardium. When turning on, a series of cardiac effects can happen.
With this information, we can conclude that the main problem that your central nervous system will try to solve is how to get out of this place.
Learn more about central nervous in brainly.com/question/17520523
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