Answer:
In transpiration pull, the evaporation of water from leaves (mesomorph cells) creates negative pressure or tension in the xylem that pulls the water from the roots and soil. But if we block the xylem at root, transpiration pull also get affected resulting in wilting of plants.
Explanation:
Urbach Wiethe disease is associated with the bilateral calcification of the amygdala and surrounding areas of the anterior medial lobes.
Urbach Wiethe disease is an autosomal recessive genetic disorder. It causes bilateral degeneration of amygdala due to lipoid storage. The vocal cords are also thickened in this disease therefore resulting in a weakened voice.
Amygdala is an almond shaped structure present in the brain. It is composed of gray matter, and is responsible for the expression of emotions. The major emotions displayed are fear, anger and pleasure. It is proved that is an organism lacks amygdala, it cannot express any emotions, even of fear.
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Whenever any atom becomes more positive, that means that it loses a negative charge. The subatomic particle that has a negative charge is the electron.
Answer:
Thoracic aorta.
Explanation:
Aneurysm may be defined as outward swelling or bulging weak spot on the walls of the blood vessels. Aneurysm may also initiate the clot formation or the condition of the embolization.
Thoracic aorta aneurysms is mainly responsible for the dyspnea and difficulty in swallowing known as dysphagia. This condition in cerebral vessels is mainly responsible for the headache and in renal arteries can cause flank pain.
Thus, the correct answer is option (D).
Just So you know, <span>The molecular clock, explains Blair Hedges, is a tool used to calculate the timing of evolutionary events. Instead of measuring seconds, minutes and hours, the molecular clock measures the number of changes.</span>