The mast cells secrete the following substance:

Which of the following characteristics is true for a connective tissue?

Identify the tissue shown in the figure.

Which of the following statement$(s)$ is/are correct?
$(i)$ Loose connective tissue contains fibroblasts,macrophages and mast cells.
$(ii)$ Adipose tissue is a type of dense connective tissue located mainly beneath the skin.
$(iii)$ Tendons and ligaments are examples of dense connective tissue.
$(iv)$ Cartilage and bones are types of specialized hard connective tissue.

Blubber of whale is an example of

The percentage of inorganic and organic salts in the matrix of a bone is