Seedlings grown in darkness

If the seeding are grown in darkness

If the seeding are grown in darkness : 1)They are of the same size as those grown in light 2) They are much healthier than those grown in light 3) they are similar to those grown in light 4) They are taller than those grown in light

Excessive elongation of plants and poor development of leaves when they were grown in darkness is called

Excessive elongation of plants and poor development of leaves when they were grown in darkness is called

A growing seedling is kept in a dark room. A burning candle is placed near it for a few days. The top part of seedling bends towards the burning candle. This is an example of: