ENVS 2210 Chapter Notes -Ontogeny, Worker Bee, Cholesterol
17 Apr 2013
School
Department
Course
Professor
Document Summary
Envs unit 04: growing up to be a bee. Holometabolous insects go through four main stages: egg, larva, pupa, adult go through dev in predictable time course. Embryo dev in egg then hatches into larva (feeding machine), stops eating then pupates and experiences metamorphoses into adult bee: metamorphosis = quicker for queen, slower for worker, slowest for drone this is b/c of nutrition. Hormones control transformations of insects, hormones keep larvae young, signal to exoskeleton to dissolve/regrow. Worker bees tasks: stay in hive, attend to needs of larvae the queen and comb: most die away from home and among the flowers. Queen normally lays eggs in colony of honeybees, but some exceptions. Queen lays egg into comb by inserting her abdomen into cell bottom and it will either be fertilized or wont: she could fertilize an egg by freeing a few sperm from her spermathecal duct.
