In coconut,the black covering (thin layer) adherent to the kernel around the endosperm is:

Name the common function that cotyledons and nucellus perform.

Which plant's seeds germinated after a dormancy period of approximately $10,000$ years?

Statement-$X$: The seeds of some plants like orchids do not contain stored food.
Statement-$Y$: The embryo present in their seeds is extracted and grown in a culture medium.

Which of the following is an example of a seed that contains both endosperm and perisperm?

After fertilization,the outer integument of the ovule develops into the........