AIIMS Biology: Questions 267 - 272 of 428

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Question number: 267

» Human Physiology » Breathing and Respiration » Respiratory Organs in Animals

MCQ▾

Question

A small space called………. . lies in between the two lungs.

Choices

Choice (4) Response

a.

Bronchioles

b.

Mediastinum

c.

Alveoli

d.

Cardiac notch

Question number: 268

» Reproduction » Sexual Reproduction in Flowering Plants » Development of Male and Female Gametophytes

Appeared in Year: 2006

MCQ▾

Question

Meiosis can be observed in [Bihar]

Choices

Choice (4) Response

a.

Spore mother cells

b.

Tapetal cells

c.

Megaspores

d.

Microspores

Question number: 269

» Human Physiology » Body Fluids and Circulation » Human Circulatory System-Structure of Human Heart and Blood Vessels

MCQ▾

Question

Open vascular system is found in

Choices

Choice (4) Response

a.

Prawn

b.

Fish

c.

Snake

d.

Man

Question number: 270

» Reproduction » Reproduction in Organisms » Characteristics of Reproduction

Appeared in Year: 2002

Assertion-Reason▾

Assertion (Ꭺ)

Death is regarded as the most regulatory process on earth.

Reason (Ꭱ)

It avoids over- crowding caused by continuous reproduction

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Question number: 271

» Human Physiology » Body Fluids and Circulation » Cardiac Cycle

MCQ▾

Question

Heart beats are accelerated by

Choices

Choice (4) Response

a.

Cranial nerves and adrenaline.

b.

Sympathetic nerves and epinephrine.

c.

Sympathetic nerves and acetylcholine

d.

Cranial nerves and acetylcholine.

Question number: 272

» Human Physiology » Body Fluids and Circulation » Cardiac Output

MCQ▾

Question

Cardiac output signifies

Choices

Choice (4) Response

a.

The amount of blood leaving the heart per unit time.

b.

The amount of blood leaving the lung per unit time.

c.

The amount of blood entering the lung per unit time.

d.

The amount of blood entering the heart per unit time.

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