STD 12 - 7. human health and disease — NEET STD 11 Science — Question

Change in single base pair

The phenomenon of using a predator for controlling a pest is

It is not in pair.

ECG is a graphical representation of the electrical activity of the heart during a cardiac cycle. Read following statements.
(i) Electrocardiograph machine is used to obtain an electrocardiogram (ECG).
(ii) To obtain a standard ECG, a patient is connected to the machine with three electrical leads one to each wrist and to the left ankle.
(iii) For a detailed evaluation of the heart's function, multiple leads are attached to the chest region.
(iv) The P wave represents the repolarisation of the atria, which leads to the contraction of both the atria.
(v) The QRS complex represents the depolarisation of the ventricles, which initiates the ventricular contraction.
(vi) The T wave represents the return of the ventricles from excited to normal state,
Which of the following option contain right statements ?

The cenozoic era is known as

A ruptured follicle in mammalian ovary after the release of ovum which latter gets fertilized, forms

Assertion: Artificially acquired passive immunity results when antibodies or lymphocytes produced outside the host are introduced into a host.

Reason: A bone marrow transplant given to a patient with genetic immunodeficiency is an example of artificially acquired passive immunity.

Take the odd one out.