Model Paper 5 — NEET STD 11 Science — Question

Variations caused by mutation, as proposed by Hugo de Vries, are

Key point to Lamarck's view about organic evolution is that every offspring

Which one of the following statements about morula in humans is correct?

When a vein instead of carrying the blood directly into the heart, first carries it to some intermediate organ like liver, is known as

Mechanism of hearing :
(i) The external ear receives sound waves and directs them to the ear drum.
(ii) Nerve impulses are generated in the associated afferent neurons.
(iii) The waves in the lymphs induce a ripple in the basilar membrane.
(iv) The vibrations are passed to the fluid of the cochlea, where generate waves in the lymphs.
(v) Vibrations are transmitted through the ear ossicles to the oval window.
(vi) The ear drum vibrates in response to the sound waves
(vii) Impulses are transmitted via auditory nerves to the brain, where the impulses are analysed and the sound is recognised
Choose correct sequence of mechanism of hearing :-

How many Y-chromosomes are present in the 2nd polar body in human beings :

The age pyramid with broad base indicates

Assertion: Renin converts angiotensinogen to angiotensin I and further to angiotensin II which increase GFR.
Reason: Angiotensin II, increases the glomerular blood pressure and also activates the adrenal cortex to release Aldosterone and thereby GFR.

Which of the following is not true for MTP?