Control with the use of chemicals
These include contraceptive (birth control) pills and spermicides (foam, sponge, etc.)
ya nasty
There are hundreds. Most common-pyrethrum.
Call a poison control center. Don't ask WikiAnswers.
It is important to perform tests on a control urine sample not containing any chemical substances, a test result on a known quality can assist you in finding the unknown qualities of a urinary sample containing chemical substances. It also can validate any positive results you get with your test sample.
What is the chemical and nervous control of blood vessels?
In biological pest control the pests are killed with a living organism whilst in chemical cultural pest control a chemical is used.
enzymes helps control chemical reactions by the chemical in it called collagen when enzymes enter your body they create a chemical reactions and controls the chemical reactions you get by eating too much acids.
"Chemical method" is another way of saying to use appropriate herbicides for weed control.
"hormones"
covalent bond
no, it happens naturally
what reason might a farmer have for using bioligical control instead of chemical pesticides
enzymes
They don't the nucleus does.
What is the special chemical signal the body uses to direct some of its activities?Hormone- A chemical signal used to control body functions.there you go
Chemical product for plague control