Name the animal tissue which acts as a heat insulator.

Describe the structure and function of different types of epithelial tissues. Draw a diagram of each type of epithelial tissue.

Name the tissue that transmits stimuli in our body. How does this tissue enable animals to move rapidly in response to stimuli?

Differentiate between voluntary and involuntary muscles. Give one example of each type.

Which muscles act involuntarily?
$(i)$ Striated muscles
$(ii)$ Smooth muscles
$(iii)$ Cardiac muscles
$(iv)$ Skeletal muscles

Name the muscular tissue which is present in the iris of the eye. What is the shape of these cells?