Q2 of 386 Page 155

Animals of colder region and fishes of cold water have thicker layer of substaneous fat. Describe why?

Animals of colder region and fishes of cold water have thicker layer is subcutaneous fat because subcutaneous fat acts as an insulating layer and thus prevents the heat loss from the body if these animals in the cold environment.


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19

What will happen if all blood platelets are removed from blood?

 1

Which structure protects the plant body against the invasion of parasites?

 3

Match the items of column A and column B











Column A



Column B



(a) Stratified squamous epithelium


(b) Striated muscle


(c) Fluid connective tissue


(d) Filling the space inside the organs


(e) Adipose tissue


(f) Surface of joints



(i) Subcutaneous layer


(ii) Cartilage


(iii) Skeletal muscle


(iv) Alveloar tissue


(v) Blood


(vi) Skin


 4

Match the column A with column B











ColumnA



Column B



(a) Arenchyma


(b) Collenchyma


(c) Parenchyma


(d) Permanent tissue


(e) Photosynthesis



(i) Thin walled packing cells


(ii) Carbon fixation


(iii) Localised thickening


(iv) Buoyancy


(v) Sclerenchyma