Question

Plant ancestors were aquatic. Describe three adaptations that allowed plants to succeed on land AND HOW each helps them.

Answer 1

Here are some adaptions integrated by plants to survive on land where conditions were quite different form water.

- stronger root network - strong roots were developed to be rigid in soil. Roots become more developed by acquiring root hairs for more water and mineral absorption.

- cuticle - through cuticle the plants succed in the retaining of water. The excess water would be released through transpiration.

-vascular tissue - development of vascular tissues was needed for a better material transportation system.

- strong stem - strong stem was needed for the position of plant in direction of antigravity. This helped leaves for better exposure to sunlight. This supported more photosynthesis.