Fill in the blanks:
Changes in our surroundings that make us respond to them, are called............. .

Fill up the blank Changes in our surroundings that make us respond to them, are called_______

Fill in the blanks: H. The integuments of ovule surround the ……… all around except at the apex, leaving a narrow passage , called the ………..

Fill in the blanks with appropriate enzymes that are required for the following changes.

Our eye makes use of the property of

Fill in the blanks : Flowers which do not open are called …….

Fill in the blanks. : A young growing plant is called__________.