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

Choose incorrect pair.

Identify given figure.

The original birds were ________, from which the various Darwin’s finches arose.

Chordae tendinae are found in

Cancer is related to

The function of pineal body is to

Which of the following statements are incorrect for bacterial pneumonia ?
(i) Bacteria like Streptococcus pneumoniae and Haemophilus influenzae are responsible for the disease in humans.
(ii) Pathogen infects the alveoli of the lungs.
(iii) As a result of the infection, the alveoli get filled with fluid leading to severe problems in respiration.
(iv) The symptoms include fever, chill, cough and headache.
(v) Intestinal perforation and death may occur in severe cases.
(vi) A healthy person acquires the infection by inhaling the droplets/aerosols released by an infected person.
(vii) A person can also acquire the infection by sharing glasses and utensils with an infected person.

Given statements are characters of muscle, which of the following is incorrect for skeletal muscles ?
(i) They do not exhibit any striation and are smooth in appearance. Hence, they are called non- striated muscle.
(ii) They have a striped appearance under the microscope and hence are called striated muscles.
(iii) As their activities are under the voluntary control of the nervous system, they are known as voluntary muscles too.
(iv) Their activities are not under the voluntary control of the nervous system and are therefore known as involuntary muscles.
(v) They are located in the inner walls of hollow visceral organs of the body like the alimentary canal, reproductive tract, etc.
(vi) They are primarily involved in locomotory actions and changes of body postures.
(vii) Are closely associated with the skeletal components of the body.

Coelenterates are