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.
When used for movement, the pseudopod reaches out and opens like a parachute to provide resistance as the amoeba pours its contents through the channel it creates. When used for feeding, the end of the pseudopod engulfs the prey item and wraps it inside a pocket called a vacuole, whereupon it is transported into the amoeba's body for digestion. Learn more about Cells