Pests have always been a nuisance for farmers. The use of pesticides dramatically improved the success of crops; however, it has been found that some insects are no longer harmed by traditional pesticides. How would Charles Darwin, the man behind the theory of evolution by means of natural selection, explain this phenomenon. A) Through random mutations in DNA, some pests developed a resistance to the pesticide.

B) The chemicals used in pesticides today are not strong enough to kill unwanted pests.

C) The pesticides used in the past caused unwanted mutations in pests causing them to mutate into superbugs.

D) Through repeated exposure to the pesticides, the pests simply got use to to the chemicals and built up a resistance.

Answers

Answer 1

Answer: The basis of the process of Natural selection is the random mutation: some organisms develop random mutations which increase their chance for survival and they survive more likely than other organisms and reproduce.

So the correct answer is:
A) Through random mutations in DNA, some pests developed a resistance to the pesticide.

Answer 2

Answer:

Answer: A

Explanation: Through random mutations in DNA, some pests developed a resistance to the pesticide. Through random mutations in DNA, some pests became resistant to the chemicals. These resistant forms are the ones to survive, reproduce, and pass on their genes.

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What will happen if boil an enzyme to over 100°C

Answers

when boiling an enzyme, the chemical bonds that hold the enzyme together start to break down. this results in the enzyme to loss it's three-dimensional structure and casuses it to no longer fit their target substrate molecules, and the enzyme stops functioning.

List reasons you would or would not be concerned about eating genetically modified food.

Answers

I would be disturbed because of the hormones that would be pumped or the unhealthy products that are put in it.

Name three structures that various protozoa use for locomotion.

Answers

Answer:

Here are the 3 structures:-

Explanation:

The three structures that various protozoa may use for locomotion are:

Flagella: long, whip-like appendages that propel the protozoa by rotating or undulating.

Cilia: short, hair-like projections that cover the surface of the protozoa and move in a coordinated manner to create a current or a wave.

Pseudopodia: temporary extensions of the cytoplasm that push or pull the protozoa by changing shape and direction.

Final answer:

Protozoa use different structures for locomotion including flagella, cilia, and pseudopodia. Flagella are whip-like structures that some protozoa use to move around. Cilia are shorter and more numerous, aiding in movement and food collection. Pseudopodia, 'false feet', are temporary cell projections used for movement.

Explanation:

Various protozoa use different structures for locomotion, which allows them to move around their environment. Three primary structures used for movement include:

Flagella: These are whip-like structures that extend from the cell body. Some protozoa, such as the Giardia lamblia, use this flagellum to propel themselves.
Cilia: Shorter and more numerous than flagella, cilia cover the surface of certain protozoa like Paramecium, aiding in its movement and food capture.
Pseudopodia: Literally meaning 'false feet', these are temporary projections of the cell. Amoeboid protozoa, such as Amoeba, use pseudopodia to move by extending a part of their body forward and pulling the rest of the body toward it.

Learn more about Protozoa Locomotion here:

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What is the relationship between HIV and AIDS?

Answers

transmitted through body, blood, mouth

What information does genetics provide about the design blueprint written in our genes?

Answers

Answer: increase understanding not only of the construction of individual genes but also of their relation to each other and to the entire chromosomal structure.

Explanation: The Human Genome Project is using primarily three levels of maps, each of which helps to increase understanding not only of the construction of individual genes but also of their relation to each other and to the entire chromosomal structure.

Which of the following is an example of an adaptation? A.Birds that live near a highway learn not to fly away every time a car passes.
B.The coloring of a monarch butterfly alerts predators to the fact that the butterfly is poisonous.
C.A dog sits when it hears a command because the owner rewards it with food.
D.Pigeons make their nests near an outdoor restaurant, where food is always available.

Answers

Answer:

Adaptation is spread through genes.

I would recommend the answer is B

Explanation:

apex

C, because he knows that if he behaves then he gets a treat so he's ADAPTING to the cause and effect:)

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