The liquid connective tissue contains no

In rabbits, the pigmented connective tissue is present in the.....

Given below are two statements:
Statement $I$: Ligaments are dense irregular tissue.
Statement $II$: Cartilage is dense regular tissue.
In the light of the above statements,choose the correct answer from the options given below:

Mast cells secrete which of the following?

Give differences: Cartilaginous tissue and Bone tissue.

In what form are yellow fibers present?