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kolezko [41]
3 years ago
8

Explain what happened genetically in the insect population over time as the insects were exposed to pyrethroids. A) The toxicity

of pyrethroids weakened over time. B) The allele for pyrethroid resistance increased throughout the population. C) Pyrethroid resistance became the dominant allele in the insect populations. D) Most insects had the allele for pyrethroid resistance, but it remained masked.
Biology
2 answers:
MArishka [77]3 years ago
6 0

Answer:

Answer is B)

Explanation:

Just did it USA TEST PREP

Xelga [282]3 years ago
5 0

Answer:B

Explanation:

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3 years ago
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Which of these is not part of insect immunity? A. enzyme activation of pathogen-killing chemicals B. activation of natural kille
Firlakuza [10]

Insect immunity doesn't include the property of an enzyme activation of pathogen-killing chemicals.

What is enzyme activation of pathogen?

Due to various trehalose's importance in pathogenic organisms, there has lately been a surge of interest in trehalose metabolism for therapeutic applications.

  • TPP (trehalose-6-phosphate phosphatase) is an important enzyme in the most important biosynthetic pathway (OtsAB).
  • The enzyme properties of recombinant TPPs from five key nematode and bacterial pathogens, including three new members of this protein family, are compared here.
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  • Multiple global conformational changes in members of this enzyme family during substrate processing can explain the observed super-stoichiometric burst amplitudes.

Hence, the correct answer is option A

Learn more about Pathogenic organisms here,

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5 0
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The histogram shows the worldwide population densities of killer whales, or orcas, distributed by latitude. According to the gra
shutvik [7]

The correct answer is - Most killer whales congregate in the areas that are near the Arctic/Antarctic Circles.

The killer whales have a very large distribution, and they can be found in all oceans, apart from the Southern Ocean. It is noted though that the population density of the killer whales differs from place to place. The higher concentrations are found around the Arctic and Antarctic Circles, where there's cool rich waters, while in the lower latitudes they are much rarer. The reason for this probably lies in the fact that most of the animals that are considered to be the prime food source of the killer whales are living in this rich cold waters.

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