It is evolution causing bugs to become resistant. Longer explanation below: Bugs that were immune to insecticides originally were rare. After the insecticides were used, only the immune bugs survived. All new bugs that were born were the children of those with immunity, and so they kept that trait.
Explain how information can be made accessible to individuals with sensory loss
"Insecticides" is a plural noun.
yes , i think insecticides are irritant substances
Yes. It is the plural of insecticide, as in, "There are various insecticides from which to choose."
explain how information can be made accessible to individual with sensory loss
to remove poisonous substances from insecticides
Insecticides contain chemical compounds known to be lethal to the creatures identified in the product information. Refer to the related link below for a Wikipedia article on insecticides.
Some insecticides are just as toxic to humans as they are to insects. Typically, it just takes a larger exposure to affect a human. However, some insecticides can be toxic even in small quantities. Insecticides such as malathion or diazinon would be harmful to humans in much smaller quantities than insecticides derived from soaps or orange peels.
doctor!
Fumio Matsumura has written: 'Toxicology of insecticides' -- subject(s): Environmental aspects, Environmental aspects of Insecticides, Insecticides, Pesticides and wildlife, Physiological effect, Toxicology
maybe
Rick Weinzierl has written: 'Microbial insecticides' -- subject(s): Microbial insecticides