The endocrine system is a messenger system comprising feedback loops of the hormones released by internal glands of an organism directly into the circulatory system, regulating distant target organs. In vertebrates, the hypothalamus is the neural control center for all endocrine system
Answer:
The invisible path the earth takes around the sun is called an orbit. all planets have orbits at varying speeds and some are even elliptical.
hope this helps!!
Let suppose you want to synthesize
Propyl Benzene, and for addition of alkyl group on benzene we do
Friedal Craft Alkylation. So,
1-chloropropane is treated with Lewis acid to generate electrophile and reacted with benzene.
But, doing so we get two products, a Major one is
Cumene (isopropylbenzene) and the Minor product is propylbenzene. This happened due to rearrangement of carbocation
propan-1-ylium to
propan-2-ylium which is secondary and
more stable.
In order to overcome this drawback,
FC Acylation is done by reacting benzene with
propionyl chloride in the presence of Lewis acid and
propiophenone is formed which on reduction yields
propylbenzene as a mojor product.Reactions are as follow,
Green in colour
live in both water and land
Butterfly milkweed = Asclepias Tuberosa
Dandelion = taraxacum
Black eyed Susan= Rudbeckia hirta,
Evening primrose=OenThera biennis
Spring forget me not/spring scorpion grass = Myosotis verna.
Daucus = Dacus carota
Annual ragweed = Ambrosia artemisiifolia