Why plants grow towards the light. 1  Botany: A Stem's 'Sense of Self' Contributes to Shape. 2  Scientists Discover C4 Photosynthesis Boosts Growth by Altering Size, Structure of Plant Leaves, Roots. 3  Cellulose Goes Off the Rails: Without Microtubule Guidance, Cellulose Causes Changes in Organ Patterns During Growth.
Tasting hairs on the legs of a roach can not only help it determine a food source, but help it avoid pesticides as well. Glycocides -- poison baits mixed with glucose -- were traditionally used to dose the sweet-loving cockroach with lethal toxins.
Squirmy wormy! â Because worms donât have legs, you probably know them as critters who âinchâ or âsquirm,â instead of âwalkingâ or âgallopingâ or ârunningâ. The reason why worms donât have legs is that they donât need them! A wormâs most important job is tunneling around in the earth to help bring water and air to the soil and the roots of plants. For a job like that, legs would probably just get in the way!