Answer: Option A
Explanation:
The T-cells and B-cells of the immune system are the part of specific immune response.
If the number of T-cells dies then the ability to activate B lymphocytes will also be lost as they help B-cells to secrete antibodies and macrophages to destroy the antigens.
T cells also helps in the activation of cytotoxic T-cells to kill the targeted cell which is affected by antigens.
hence, the correct answer is option A
The heart rate of the fetus in relation to the contractions is the priority consideration while caring for a mother who is having strong contractions one minute apart.
There are a number of point which have to be taken care of when a mother is having strong contractions which are 1 minute apart but the priority is always to check the status of the fetus. This is important because the blood flow of the placenta gets interrupted temporarily with every contraction and therefore if the contractions are too strong and too long lasting, the fetus might not able to tolerate them.
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Answer:
True
Explanation:
<u>Rotational and linear motions are analogous to each other.</u>
<u>The inertia of a body in a linear motion is its mass.</u> This can be seen from Newton's second law of thermodynamics:
F = ma
The larger the value of the force, the larger the inertia is (m) and the slower it accelerates.
<u>The inertia of a body in a rotational body is it moment of inertia (I).</u> Both I and m are same but I depends on both the shape and mass of the rotating body.
For example, The inertia of a solid disk with mass M and radius R is:
Hence, the statement is true.
The correct answer is D. Hypertension.
Explanation
Arterial hypertension is a disease of the circulatory system of the human body in which the pressure of blood flow through the veins and arteries increases above normal levels increasing the risk of cardiovascular accidents, coronary heart disease, heart failure, cerebrovascular accidents, and renal insufficiency.
A third of the world's population suffers from this condition and it is the first cause of visiting the doctor. Also, this disease is related to certain habits including, eating habits, sports activities, and the consumption of substances such as cigarettes and alcohol. So, the correct answer is D. Hypertension
