Question

1.) Why do animals of colder regions and fishes of cold water have a thicker layer of subcutaneous fat?
2.) Xylem transports ____X___ and ____Y___ from soil.

(a) X ⇒ Water & Y ⇒ Minerals

(b) X ⇒ Air & Y ⇒ Minerals

(c) X ⇒ Air & Y ⇒ Water

(d) X ⇒ Soil & Y ⇒ Nutrients

Answer 1

Answer:

Subcutaneous fat is present beneath the skin epithelial layer. Fat does not allow to escape the heat from the body i.e. it acts as an insulating layer. Thus, the subcutaneous fat layer is involved in thermoregulation.

Therefore, option D is correct.

Answer 2

Answer:

1. because of the cold they store there food as a form of fat and at the winter times it is utilised as a form of starch.

2. a) is the right answer ....