Question

Choose the correct answer :
1. Which component of blood helps in clotting?
(a) RBC
(b) WBC
(c) Platelets
d none of these
2. The transport tissues in plants
(a) Xylem (b) Phloem
(c) a and b (d) none of these
3. Which contains the haemoglobin?
(a) RBC
(b) WBC
(c) Platelets
d plasma
4. Life span of RBCs is:
(a) 100 days (b) 120 days (c) 50 days d 150 days
5. The device to listen heartbeats is known as:
(a) Thermometer (b) Dialysis machine (c) Stethoscope d anemometer
6. Dialysis is used in case of failure of:
(a) Liver
(b) Lungs
(c) Heart
d blood
7. Which organ is not a part of circulatory system?
(a) Blood
(b) Blood vessels (c) Liver
(d) Anemometer
(d) Kidneys
(d) Heart
8. The process which involves the exchange of gases is called :
(a) Respiration (b) Circulation (c) Digestion. d breathing
9. Which of the following is a plant waste ?
(a) Gum
(b) Urine
(c) Urea
d sweat
10. Plants wastes are
(a) Latex
(b) Gum
(c) Resins
d all of these
11. The process of removal of waste from bodies is called :
(a) Ingestion (b) Excretion (c) Respiration
d dialysis
12. The blood vessels which carry oxygen rich blood are
(a) Arteries
(b) Veins
(C) Ureters
(d) Dialysis
(d) Capillaries​

Answer 1

Answer:

1 - Platelets

2 - a and b

3 - RBC

4 - 120

5 - Stethoscope

6 - Liver

7 - Anemometer

8 - Respiration

9 - Gum

10 - All of these

11 - Excretion

12 - Arteries and Veins [I'm not sure]

Hey! Hope this helped you! I answered what I could. ☺

Answer 2

Answer:

1. c. platelets
2. c. (a) and (b)
3. a. RBC
4. b. 120 days
5. c. stethoscope
6. d. blood
7. d. anemometer
8. a. respiration
9. a. gum
10. d. all of these
11. b. excretion
12. b. veins