Find examples where the four daughter cells from meiosis are equal in size and where they are found unequal in size.

Where are columnar epithelial cells found?

From where do the single celled organisms get oxygen ?

Where do we find glial cells in brain ?

'Gulab Jamuns' (assumed to be spherical) are to be heated in an oven. They are available in two sizes, one twice bigger (in radius) than the other. Pizas (assumed to be discs) are also to be heated in oven. They are also in two sizes, one twise big (in radius) than the other. All four are put together to be heated to oven temperature. Choose the correct option from the following:

Where do you find sieve cells? What is their function?