Question

What are the methods used by plants to get rid of excretory products

Answer 1

transpiration - evaporation of water from plants
they store extra food in form of starch
they breathe out oxygen

Answer 2

♤ Plants get rid of CO2 and O2 through diffusion. Old branches and leaves are shed off when they become useless.

♤ Plants have a mechanism to release some waste products through roots also.

♤ Some waste products are deposited near bark as raisin or gums.