Biology
Aditya who is fond of roller skating. Identify the correct terms which help him to maintain his body balance:

- Cerebellum, Semicircular canals, Vestibule
- Vestibule, Sclera, Cerebrum
- Malleus, Semicircular canals, Utriculus
- Sacculus, Stapes, Cochlea
Related Questions
Cultural revolution favours a steep rise in human population. Identify the correct sequence of revolution:
- Tool making, Scientific and Industrial, Agricultural
- Agricultural, Tool making, Scientific and Industrial
- Scientific and Industrial, Agricultural, Tool making
- Tool making, Agricultural, Scientific and Industrial
Tanvi tried to match the phases of menstrual cycle with the number of days as given in the table below:
PHASE DAYS P – Follicular Phase Day 5 – 12 Q – Luteal Phase Day 15 – 28 R – Menstrual Phase Day 3 – 5 S – Ovulatory Phase Day 13 or 14 Identify the correct sequence:
- P, Q, R, S
- Q, S, R, P
- R, P, S, Q
- S, R, P, Q
Give the biological/technical terms for the following:
(a) A mixture of smoke and fog.
(b) The inner lining of uterus.
(c) The pressure that is responsible for the movement of water molecules across the cortical cells of the root.
(d) The ground substance present in a chloroplast.
(e) The fluid present between the layers of meninges.
Given below is the diagram of a human heart. Read the information below the diagram and fill in the blanks:

The human heart pumps blood throughout the body. It is the size of a large fist. The heart is located between the lungs in the thoracic cavity. It has four chambers. The heart functions all through the lifespan of a person and is responsible for the survival of the person.
The heart is enclosed by a membrane called (a) …………… (Pericardium / Pleura). The ventricles give rise to two large blood vessels called (b) …………… (Pulmonary vein / Pulmonary artery) and (c) …………… (Aorta / Venacava). The flaps of the cuspid valves are kept in position by (d) …………… (Chordae tendinae / Endometrium). (e) …………… (Hepatic / Coronary) arteries supply oxygenated blood to the walls of the heart.