Give reasons for the following:
Tissue $A$: Cells are filled with fat globules and the tissue acts as an insulator.
Tissue $B$: Has cylindrical,branched cells and the tissue shows rhythmic contraction and relaxation throughout life.

(N/A) Tissue $A$ is Adipose tissue.
Reason: It is a type of connective tissue where cells are specialized to store fats in the form of globules. This fat layer acts as an insulator against heat loss from the body.
Tissue $B$ is Cardiac muscle.
Reason: Cardiac muscle cells are cylindrical,branched,and uninucleate. They are involuntary muscles that exhibit rhythmic contraction and relaxation throughout the life of an organism to pump blood.