Model Paper 8 — NEET STD 11 Science — Question

An organism used as a biofertilizer for raising soyabean crop is

What is correct for phyllum which show bioluminescene?

Assertion: Evolution is not a direct process in the sense of determinism.
Reason: It is a stochastic process based on chance events in nature and chance mutation in the organisms.

Capacity of amphibians to change colour is called

Statement I: Catecholamines increase the heart beat.
Statement II: Catecholamines stimulates the breakdown of glycogen.

You are watching a horror movie and you notice that your heart is beating fast and mouth is dry. It is because of

Assertion: Histamine is related with allergic and inflammatory reactions.

Reason: Histamine is a vasodilator.

Anatomically, the ear can be divided into three major sections called the outer ear, the middle ear and the inner ear. Which of the following statements are correct for inner car ?
(i) The organ of Corti is a structure located on the basilar membrane which contains hair cells that act as auditory receptors.
(ii) A large number of processes called stereo cilia are projected from the apical part of each hair cell.
(iii) Above the rows of the hair cells is a thin elastic membrane called tectorial membrane is present.
(iv) The vestibular apparatus is composed of three semi-circular canals and the otolith organ consisting of the saccule and utricle.
(v) Semi-circular canals contain a projecting ridge called macula.
(vi) The saccule and utricle contain a projecting ridge called cristae.
(vii) The cristae and macula responsible for maintenance of balance of the body and posture.

Spongilla is....