Question

estion
14. Why does a person start vomiting after consuming a concentrated salt solution?
(3)
15. What may be the reasons for mass mortality of fish in a pond?
Section D
16.
(a) Name the tissue which
(i) Stores fat in our body cicli' bose
(ii) Connects muscles to bones cisament
(iii) Transports food in plants xylem
(b) List any two points of differences between collenchyma and sclerenchyma

Answer 1

Answer:

14)

When a person drinks salt solution, the condition in his body becomes hypertonic and causes exosmosis resulting in shrinkage of the cell. The outward movement of water from the cell results in irritation and excessive dehydration. This results in reverse movements and hence, vomiting

15)

n a pond ,a mass mortality of fish may occur due to following seasons . ➡️ Passage of pesticide rich water from crop fields. ➡️ Pouring of hot water from an industrial waste. ... ➡️Blockage of gills of fish by some suspended pollutant such as oil.Mar 17, 2018