BIOLOGY MIDDLE SCHOOL

Bacteria and viruses have different mechanisms and machinery to survive and replicate. Because of this, there are different ways of treating bacterial and viral infections. What is a difference in the way that bacterial and viral infections are treated medically?A) Viruses can be treated with antibiotics, bacteria cannot.

B) Bacteria can be treated with antibiotics, viruses cannot.

C) Vaccinations provide immunity from viruses, but not bacteria.

D) Vaccinations provide immunity from bacteria, but not viruses.
Bacteria and viruses have different mechanisms and machinery to survive - 1

Answers

Answer 1
Answer:

Answer:

That is correct on USATestPrep

Explanation:

Bacteria can be treated with antibiotics, viruses cannot.

Antibiotics won't treat viral infections because they can't kill viruses. Viruses are not living and depend on a host cell to provide the machinery for reproduction.
Answer 2
Answer:

B) Bacteria can be treated with antibiotics, viruses cannot.

Antibiotics have no target when dealing with viruses. Antibiotics work on bacteria because it targets the growth machinery in bacteria. Viruses are found inside a human cell and reproduce by inserting their DNA into a human cell. There are antivirals and vaccines out there for viruses. Our body’s immune system fights against viruses with antibodies!

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List three effects that an increase in urbanization can have on air quality

Answers

Increase in urbanization will lead to increase in the number of people who are living in an urban area and it will also lead to increase in development in that area. The increase in development can come in form of construction of industries, which release large amount of waste products that pollute the air. This will lead to air pollution and reduce air quality. Development can also be in form of availability of electricity, that makes it possible for people to operate different electrical gadgets such as radio and television, which can result in noise pollution. Increase in the number of people who operate motor vehicles will also lead to increase in air pollution, which is caused by fossils fuel.
There are several effects that an increase in urbanization will have on air quality. One will be there will be more vehicles on the road. Before the city was urbanized, there were fewer vehicles and people. Another reason will be more industry pollution. When a city has been urbanized, more factories will come for the citizens to have jobs and to bring in more money. The burning of fossil fuels will also increase as the population grows. That will have a huge effect on the air quality. 

Why is a classroom door knob the least infected place in a classroom?

Answers

it is the least touched 

Which type of evidence is least likely to result in changes to a phylogenetic tree?

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Best source of data for defining phylogenetic relationships of in line of protists that occurs hundreds of millions of years ago is called DNA sequences for ribosomal RNA. Choose the tree that symbolize the fewest evolutionary changes, either in DNA sequence comparisons or morphological characters.
DNA sequencing is likely to result in changes to a phylogenetic tree.

Why do venus fly traps have lysosomes?

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Venus Fly Traps have Lyosomes because it helps break down food that was ingested by cells. Most plants use the sun to produce protein and fat to make glucose sugar, but since this eats insects produce digestive enzymes similar to the onesin the stomach and intestines of animals. 

Explain carefully what is wrong with each of these statements,and suggest what should have been said instead:
(a) "The function of the stomach is to digest food."

(b) "The small intestine absorbs your food."

(c) “Amylase breaks down starch to glucose."

(d) "The stomach contains acid because the protease enzyme
there works best at pH 2."

Answers

Answer&Explanation:

All statement are correct but for a: not only stomach is digesting food but there whole alimentary canal

B: addition vitamin is absorbed at stomach together with water

C: starch to maltose which is then broken by lipase enzymes to glucose

D:in addition acid kill bacteria and activate the enzymes pepsinogen and renin

Compare and contrast cell communication by nerve signal with cell communication by ion-linked channel receptors... please help fast

Answers

Nerve cells communicate by sending an electrical signal through an axon, from this molecules get released into the synapse this then binds itself onto receptor sites. With ion-linked channel receptors, the ligands get binded to a protein. The ion channels are then opened and the proccess gets repeated. Does that help?
Nerve cells communicate by sending an electrical signal through an axon, from this molecules get released into the synapse this then binds itself onto receptor sites
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