Question

Q-3 Choose the correct options.
1. Structures present in a cell which is responsible of determination of the
sex of a baby is
(a) Cytoplasm.
(c) nucleus
(b) Cell membrane
(d) chromosomes
2. Which of the following is incorrect about adrenal glands?
(a) It secrets hormones which maintain the correct salt balance in
the blood.
(b)
It secretes hormones which maintain the sugar balance in the
blood.
(c) It is under the control of pituitary gland.
(d) It helps the blood to adjust to stress.
3. All human beings have.
(a) 23 pairs of chromosomes
(b)
4. Loudness of sound is measured in unit of moso 1o15ubnoo gningar
22 pairs of chromosomessg1167 eldible cone of these
(a)
Disable (dB)
ya 15102 (c) metge (m) 29116m2 a zi yuugi E
(b) Herts. (Hz)
m1912(d), metge per secondo/s) 9 919
5. 1 hertz is equal to
stillatsz Isioitite as ai TA 2
(a) 1 vibrations per minute
(c) 10 vibrations per minute
(b)
um has azioni I
als to
(c) xx sex chromosomes -
60 vibration per minute99wisd 1600 vibrations 2 (A) S-D​

Answer 1

Explanation:

1. Chromosomes

2. It secretes hormone which maintain the sugar balance in the blood

3. 23 pairs of chromosomes.

4. Decibel (dB)

5. 1 hertz is equal to 1 vibration per second

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