The type of growth pattern observed in conifers is

Growth in length of a plant can be measured by

$A$ few normal seedlings of tomato were kept in a dark room. After a few days,they were found to have become white-coloured like albinos. Which of the following terms will you use to describe them?

Which of the following is essential for plant growth?

Study the following statements:
$I.$ $O_2$ helps in releasing metabolic energy,which is essential for growth.
$II.$ Nutrients are required by plants for the synthesis of protoplasm.
$III.$ Change in temperature could be detrimental for the survival of an organism.
$IV.$ Light and gravity do not affect the stages of growth.
Choose the correct option.

The area of the plant which receives the stimulus is known as: