Why have pesticide producers failed to produce new mosquito-killing insecticides in recent years?

1 answer:

4 0

The answer is the problem of resistance. Mosquitos have proven to be resilient to pesticides treatment hence becoming more dangerous and harder to eradicate. This is due to the fact that the pesticides are inducing mutation in their genes hence giving them resistance. This is why no-pesticide-control of mosquitos, such as the use of nets, is becoming the best option in mosquito control.

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With the help of labelled diagram explain the menstrual cycle in adolescent girls

MissTica

Answer:

it is diagram okk

Explanation:

female reproductive system undergoes some changes and those changes repeat at interval of every 28-30 days. this repetative changes are called menstrual cycle. it is natural process, controlled by four hormones. those four hormones follicle stimulating hormone,luteinizing hormone, estrogen and progesterone. one of several follicle in ovary starts to develop along with oocyte present in it,under effect of follicle stimulating hormone. developing follicle secrets estrogen. endometrium of uterus starts to regenerate under effect of estrogen. it bursts under effect of luteinizing hormone and oocyte is released. this is ovulation. remaining tissues of burst follicle forms corpus luteum. corpus luteum starts to secrets progesterone. endometrial glands secrets their secretion under effect of progesterone. such endometrium is ready for implantation of embryo.

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3 years ago

In 3-4 sentences explain why recognizing bias in people important to science?

lyudmila [28]

Answer:

Researchers generally recognize several different sources of bias, each of which can strongly affect the results of STEM research. ... Researchers can influence outcomes through their study design choices, including who they choose to include in a study and how data are interpreted.

(Science: statistics) in a clinical trial, bias refers to effects that a conclusion that may be incorrect as, for example, when a researcher or patient knows what treatment is being given. to avoid bias, a blinded study may be done.

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Nucleus is present in the animal cell

Sidana [21]

Answer:

Yes.

Explanation:

The nucleus is present in both animal and plant cells.

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2 years ago

3. Which of the following shows a kinetic energy ?

bonufazy [111]

Answer:

we can't answer there are not following

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3 years ago

How can the axis help you determine the season that is taking place in the northern hemisphere

luda_lava [24]

The axis is an imaginary line going through the earth so the way the earth is "tilted" would tell you,for example, if the northern hemisphere is tilting toward the sun, it will be summer in the northern hemisphere.

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