Over time, bacteria have become increasingly resistant to antibiotics. Explains this in terms of natural selection.

Answers

Answer 1

Answer:

Answer:

Bacteria with antibiotic resistance gene/s are favored by natural selection.

Explanation:

The presence of one or more antibiotic resistance genes in the bacteria becomes an adaptive trait in the presence of antibiotics in the surroundings. These bacteria have higher chances of survival and reproduce more to produce more progeny as compared to the bacteria that lack any antibiotic resistance gene. Therefore, the frequency of antibiotic-resistant genes in the population increases over the generations. Here, the increased fitness of bacteria having antibiotic resistance gene/s in the presence of antibiotics represents a natural selection.

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I need help please, it's for biology

Answers

Answer:

the answer to your question is glucose

Answer:

it should be light

Explanation:

as photosynthesis uses the energy of sunlight to convert water and carbon dioxide (reactants) into high-energy sugars and oxygen (products).

Which one of the following statements holds true for the induced-fit model?a. Once the enzyme binds to the specific substrate molecule, no structural changes can occur in the active site of the enzyme.
b. Once the enzyme binds to the specific substrate molecule, structural changes can occur in the active site to accomodate the product.
c. Once the enzyme binds to a specific substrate molecule, subtle structure changes occur in the active site, which are reverted when the reaction is over.

Answers

C. once the substrates bind to the enzyme, the active site of the enzyme changes, to the shape of the substrate. Once the product detaches from the enzyme, then the active site returns to it's normal shape

If a person is having a problem with balance, what part of the brain would most likely be the cause?

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I reckon it's the cerebellum.

When bonds are broken, energy is released.
True or false

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Answer:

False. When bonds are broken, energy is absorbed.

Explanation:

Atoms form bonds to seek stability, which means lower energy compared to when they were separated. This means that separating atoms by breaking bonds is not energetically favourable.

Therefore, in order to break a chemical bond we need to provide energy to the system, which makes the process endothermic (it absorbes energy).

The attached image shows an energy diagram for the H₂ molecule, showing the variation in energy during bond formation.

False. Breaking Bonds → Energy Absorbed

You have to put energy into a molecule to break its chemical bonds. The amount needed is called the bond energy. If you think about it, molecules don't spontaneously break.

Select all that apply. Which animals have an endoskeleton? monkeys fish starfish grasshopper clam gecko

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All the animals mentioned [monkey, fish, star fish, clam gecko] have endoskeleton except grasshopper which has exoskeleton. Endoskeleton is an internalised skeleton which is found inside the body of the animals which possess it while exoskeleton is a type of skeleton that is found outside the body.

Monkeys, fish, and gecko are the answers.

Helium has an atomic number of two, so its outer energy level is full. Helium is considered _____.neutral
inert
an anion
a cation

Answers

Helium has an atomic number of two, so its outer energy level is full. Helium is considered inert. The correct option among all the options given in the question is the second option. It is actually non toxic in nature. Helium is also colorless, odorless and tasteless in nature. It is the first in the noble gas group of the periodic table.

Answer:

inert

Explanation:

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Which of the following sentences from Zora Neale Hurston's "What White Publishers Won't Print" best supports the author's opinion that white Americans perceive educated African Americans as a threat?a. Man, like all the other animals fears and is repelled by that which he does not understand, and mere difference is apt to connote something malign. b. National coherence and solidarity is implicit in a thorough understanding of the various groups within a nation, and this lack of knowledge about the internal emotions and behavior of the minorities cannot fail to bar out understanding. c. The fact that there is no demand for incisive and full-dress stories around Negroes above the servant class is indicative of something of vast importance to this nation. d. I have been amazed by the Anglo-Saxon's lack of curiosity about the internal lives and emotions of the Negroes, and for that matter, any non-Anglo-Saxon peoples within our borders, above the class of unskilled labor. e. Argue all you will or may about injustice, but as long as the majority cannot conceive of a Negro or a Jew feeling and reacting inside just as they do, the majority will keep right on believing that people who do not look like them cannot possibly feel as they do, and conform to the established pattern.