Question

1. What is stomatal index?????? 2. which plant hormone is responsible for closing of stomata ???????? 3. Why xerophytes have sunken stomata ?????? Answer these in reference to NCERT Lab manual class 10

Answer 1

Answer:

ok  mark as breainist

Explanation:

xerophytes\

are the plants which lives in deserts

due to the low amount of water present in tgat area their stomata is sunken to prevent extra loss of water

Answer 2

Explanation:

1. stomatal index is the percentage which the no of stomata a form the total no of epidermal cells each stoma being counted as a cell
2. abscisic acid