Name the stimulus which causes the following movements in plants: phototropism, thigmotropism, hydrotropism and geotropism.

Name the following:

A hormone that stimulates growth by cell division.

Name the following:

The main auxin found in most plants.

Define the following terms:

(a) Phytohormones

(b) Tropism

(c) Clinostat

(d) Apical dominance

(e) Parthenocarpy

(f) Abscission

(g) Heliotropism