Choose the correct answer:
Question 1.
Which of the following is the main circulatory fluid in our body ?
(a) Plasma
(b) Lymph
(c) Blood
(d) None of these
Question 2.
Which one of the following contains haemoglobin?
(a) RBC
(b) WBC
(c) Platelets
(d) None of these
Question 3.
What is the function of WBCs?
(a) Transport of oxygen
(b) Fight against germs
(c) Involved in blood clotting
(d) All of these
Question 4.
Blood platelets help in
(a) formation of urine
(b) excretion of urine
(c) sweating
(d) blood clotting
Question 5.
The muscular tube through which stored urine is passed out of the body is called:
(a) kidney
(b) ureter
(c) urethra
(d) urinary bladder
Question 6.
They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two-way traffic in plants. Which of the following terms qualify for the features mentioned above?
(a) Xylem tissue
(b) Vascular tissue
(c) Root hairs
(d) Phloem tissue
Question 7.
The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in:
(a) veins
(b) arteries
(c) heart
(d) capillaries
Question 8.
In which of the following parts of human body are sweat glands absent?
(a) Scalp
(b) Armpits
(c) Lips
(d) Palms
Question 9.
In a tall tree, which force is responsible for pulling water and minerals from the soil?
(a) Gravitational force
(b) Transportation force
(c) Suction force
(d) Conduction force
Question 10.
Aquatic animals like fish excrete their wastes in gaseous form as
(a) Oxygen
(b) Hydrogen
(c) Ammonia
(d) Nitrogen