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.
Now that you can see how ants are put together and what each part is named, letâs learn what each part does and what is inside of them. The antâs second body segment, the mesosoma, is packed full with muscles that power its three pairs of legs. The legs are designed for running â ants can run very fast for their size. At the end of each leg is a hooked claw that is used to climb and hang on to things. The gaster contains the antâs heart, digestive system, and chemical weaponry. Some ants have a sting, which is used to inject venom into enemies. Others have a tiny opening at the tip of their gaster through which they spray acid to stun prey or defend themselves.