What is the name of the outer thin membrane over the eyeball?
The method that renders the seed coat permeable to water so the embryo expansion is not physically retarded is
In a human eye, name the following parts. (i) A thin membrane which allows light to enter into the eyes. (ii) The muscles which help in changing the focal length of the eye lens.
Which of the following polymers is used for coating as a thin layer on the inner side of non - sticking pans ?
(a) Draw a diagrammatic sectional view of a mature anatropous ovule and label the following parts in it : (i) that develops into seed coat. (ii) that develops into an embryo after fertilization. (iii) that develops into an endosperm in an albuminous seed. (iv) through which the pollen tube gains entry into the embryo sac. (v) that attaches the ovule to the placenta.
