| A | B |
|---|
| entomology | the study of insects |
| prothorax | attaches to the head and bears the first pair of walking legs |
| mesothorax | bears the forewings and the second pair of walking legs |
| metathorax | attaches to the abdomen and bears the hindwings and the large jumping legs |
| labrum | upper lip of a grasshopper |
| labium | lower lip of a grasshopper |
| salivary glands | glands that produce saliva and aid in digestion |
| midgut | where food is bathed by enzymes |
| gastric ceca | pockets that branch from the digestive tract and supply the enzymes to the midgut |
| hindgut | where undigested matter travels before it is passed through the anus |
| tympanum | a sound sensing organ in grasshoppers |
| ovipositor | a pointed organ used for digging and laying eggs |
| metamorphosis | change in form as development continues |
| incomplete metamorphosis | when a nymph hatches from an egg and gradually develops into an adult |
| nymph | an immature form of an insect that looks somewhat like the adult |
| complete metamorphosis | when an insect undergoes two stages of development between the egg and the adult |
| pupa | a stage of development in which an insect changes from a larva to an adult |
| chrysalis | a protective case in which the pupa of a butterfly develops |
| cocoon | a case in which moth pupa develop |
| warning coloration | a bold, bright color pattern that makes dangerous, poisonous, or bad tasting animals clearly recognizable and warns predators away |
| Mullerian mimicry | when a member of one dangerous or poisonous species mimics the warning coloration of another |
| Bastesian mimicry | when a harmless species mimics the warning coloration of a dangerous species |
| pheromone | a chemical released by an animal that affects the behavior or development of other members of the same species through the sense of smell or taste |
| social insects | an insect that lives in a complex colony |
| innate behavior | behaviors that are "programmed" into an animal's genes |
| worker bees | sterile females that make up the vast majority of the hive population |
| queen bee | the only fertile female in the hive |
| drones | male bees that develop from unfertilized eggs |
| royal jelly | a high-protein substance used to feed the queen and the youngest larvae |
| queen factor | a pheromone that prevents other female larvae from developing into queens |
| round dance | a way of communicating in bees that food is near the hive |
| waggle dance | way of communicating in bees that food is far from the hive |
| altuistic behavior | the aiding of other indivduals at one's own risk or expense |
| kin selection | a mechanism for increasing the propogation os one's own genes by helping a closely related individual reproduce |
