Which of the following have hard and non pliable ground substance :-

Which of the following is a hard acid ?

Which of the following is a hard acid ?

Which of the following polymers are hard?

Which of the following polymers are hard?

Assertion (A): Bones support and protect- softer tissues and organs. Reasons (R): Bones have a hard and non-pliable ground substance rich in calcium salts and collagen fibres which given strength to the bones.

Consider the following statements (i) - (iii), each with one or two blanks (i) Bones have a hard and non-pliable ground substance rich in ul(1) and ul(2) which give bone its strength (ii) Some of the columnar or cuboidal cells get speciallised for secretion and are called ul(3) epithelium (iii) ul(4) junctions help to stop substances form leaking across a tissue Which one of the following options, gives the correct fills ups for the respective blanks from (1) to (4) in the statements ?

Consider the following statements (i) - (iii), each with one or two blanks (i) Bones have a hard and non-pliable ground substance rich in ul(1) and ul(2) which give bone its strength (ii) Some of the columnar or cuboidal cells get speciallised for secretion and are called ul(3) epithelium (iii) ul(4) junctions help to stop substances form leaking across a tissue Which one of the following options, gives the correct fills ups for the respective blanks from (1) to (4) in the statements ?