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How do insecticides force evolution?
Widespread use of insecticides can lead to the evolution of insecticide resistance. In any population of insects there will be genetic variation ie individual insects are not identical; just like humans there are all different. Some individual insects will be more resistant to an insecticide than others. When an insecticide is used the individuals which are resistant will have a better chance of surviving. They will then pass on their resistance genes to their offspring, which will in turn have a better chance of surviving. In this way the resistance genes will spread through the population. This is an example of natural selection in action. See www.evolution.berkeley.edu/
What are two characteristics biologists look for in new crops?
Fertilizers and Insecticides.
What is the difference of pulmonary circulationcoronary circulation and systemic circulation?
Coronary circulation is a sub-set of systemic circulation, it just supplies the heart. Pulmonary circulation is mecanically the same as systemic, but the blood enters as deoxigenated, and the pressures are much lower.
What are some example sentences for preposition?
The man ON the platform was staring back at me. This is an example sentence for preposition.
What are some examples of indirect sentences?
EXAMPLE: They gave me a bonus.
What lawn care supplies can get rid of bugs that eat grass?
Pesticides and insecticides can eliminate pesky insects that eat grass. There are two types of insecticides: topical and systemic. Topical insecticides are sprayed or sprinkled on the grass and kill insects on contact. Systemic insecticides are chemicals that are ingested by an insect from the roots of the plant. They only kill the insect after it has eaten it. http://www.lakejemfarms.com/blog/posts/herbicides-and-pesticides-what-to-use.html
Why are systemic insecticides better than common insecticides?
They are not always better. it is dependant upon insect, application site & circumstances. That only describes mode of action. What is important is results & what is actually best for the situation considerring all factors. Answer A systemic insecticide works from within the sap of the plant so lasts longer than a contact insecticide that only kills the insects on the plant at the time. A systemic insecticide does not affect the predators of the sap suckers.
Do insecticides kill humans?
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.
Do bees help polinate sunflowers?
Yes. Although if the sunflowers are grown using systemic insecticides, such as Bayer's Clothianidin, the bees will almost certainly die from neonicotinoid poisoning.
How insecticides help us?
insecticides help farmers to eliminate harmful insects. Most are poisonous but some are concentrated in the food chain.
What part of speech is the word insecticides?
"Insecticides" is a plural noun.
Is insecticides irritant?
yes , i think insecticides are irritant substances
What rhymes with demic?
Some words that rhyme with "demic" include: endemic, systemic, academic, and epidemic.
What are the various brands of insecticides that are available in the local market?
There are a vast number of insecticides available in liquid, spray, and granular form. Some of the leading brands are Orthene, Ortho, Bayer, and Spectrum.
On your Japanese maple bush you notice some small white bugs what are they and how do you get rid of them?
aphids or whiteflies get some ladybugs to eat them ****************** GET SOME LADYBUGS?? Please don't listen to that idiot It has mealybugs. Use Mealybug insecticides available as natural and chemical insecticides. Look for horticultural oils that contain neem oil to suffocate mealybugs. If you prefer chemical insecticides, look for products that contain permethrin or pyrethrin as the active
What is systemic random sampling?
In order to do a systemic random sample, the items or individuals in the population are arranged in a certain way (for example, alphabetically). A random starting point is selected and then every __th (for example: 10th or 15th) individual is selected for the sample.
Is insecticides a real word?
Yes. It is the plural of insecticide, as in, "There are various insecticides from which to choose."
