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notka56 [123]
4 years ago
14

Which method of fly control would be MOST harmful to other organisms in the environment? A Spraying broad-range insecticides B u

sing fly traps C Planting carnivorous plants D Realeaing sterilized male flies
Biology
1 answer:
VARVARA [1.3K]4 years ago
4 0

The right answer is A.

Insecticides are active substances or phytosanitary preparations with the property of killing insects, their larvae and / or their eggs. They are part of the family of pesticides, themselves included in the family of biocides, both of which are regulated in Europe by specific directives.

Some pestiids such as organoclorides are broad-spectrum, ie they act on several insects at the same time (whether they are good or bad).

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cestrela7 [59]

Answer:

Use 400 x in order to study the structure clearly.

Explanation:

Cell structures could be clearly identified when magnify the microscope about 400 x by using a compound microscope. Due to high magnification power of compound microscope, the individual is able to see different structures that are present in cells. while by using lower magnification, the individual is unable to see different structures clearly. So use high magnification in order to study the cell.

6 0
3 years ago
Divide 250g in the ratio 5:3:4 ​
Rama09 [41]

Answer:

let the three parts be

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so on adding

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x = 20

so it will be divided into three parts as

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4×20 = 80

Explanation:

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B. meiosis produces cells that are used in reproduction.
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Which richer magnitude range Is felt but rarely causes damage
babymother [125]
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8 0
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hram777 [196]

Answer:

6) unicellular means organisms contains one cell while multicellular means organisms contain more than none cell.

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