Select the correct pair.

Identify the white blood cells.

Which of the following tissues in the body is most radiosensitive?

Identify the correctly matched pairs of the germ layers and their derivatives.
$I.$ Ectoderm - Epidermis
$II.$ Endoderm - Dermis
$III.$ Mesoderm - Muscles
$IV.$ Mesoderm - Notochord
$V.$ Endoderm - Enamel of teeth

Choose the correct statements:
$(a)$ Bones support and protect softer tissues and organs
$(b)$ Weight bearing function is served by limb bones
$(c)$ Ligament is the site of production of blood cells.
$(d)$ Adipose tissue is specialised to store fats.
$(e)$ Tendons attach one bone to another.
Choose the most appropriate answer from the options given below:

Cockroach and earthworm have a common type of: