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3 years ago

Why are many bacterial infections more difficult to treat now than they were fifty years ago

2 answers:

6 0

Bacterial infections were much harder to treat a long time ago because we didn't have the same technology or information that we do now. because we have worked so long on treating different things we have learned what works and what doesnt. the new technology has helped us understand the infection which led to us being able to find medication to treat said infection.

blondinia [14]3 years ago

5 0

Because bacteria have evolved resistance to antibiotics. (USATestPrep)

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he removal of waste from Florida’s East Bay and Pensacola Bay is intended to speed the bay ecosystem’s natural tendency to do wh

Trava [24]

I think it is D but I am not for sure

7 0

3 years ago

Dahlia mosaic virus has: [](a)DNA [](b)RNA [](c)DNA and RNA both [](d)None of these

VikaD [51]

Answer:

the answer is c. it has both DNA and RNA

6 0

3 years ago

If perfect growing conditions allowed a population of producers to grow and increase in density, which of the following changes

strojnjashka [21]

Answer:

Explanation:

The population of herbivores wouldn't decrease because their food source is being increased. Predators wouldn't leave because more herbivores come to eat the increased number of producers, thus more than likely increasing the number of predators.

6 0

3 years ago

30% of B-A=18% OF B+A THEN A:B?

dlinn [17]

Answer:

1:4

Explanation:

30%= $\frac{30}{100}$

18%= $\frac{18}{100}$

Rewrite the given information:

$\frac{30}{100} (B - A) = \frac{18}{100}(B + A)$

Multiply by 100 throughout:

30(B -A)= 18(B+A)

Divide by 6 throughout,

5(B -A)= 3(B +A)

Expand

5B -5A= 3B +3A

Bring A terms to 1 side and B terms to another:

5B -3B= 5A +3A

Simplify

2B= 8A

Divide by 2 throughout:

B= 4A

Now, we have to find the ratio of A to B.

B= 4A

Divide by 4 throughout:

A = $= \frac{1}{4} B$

Divide by B on both sides:

$\frac{A}{B} = \frac{1}{4}$

Thus, A:B= 1:4

4 0

3 years ago

The division of a bacterial cell into two daughter cells is accomplished by a protein called FtsZ. FtsZ is very similar to the t

Vedmedyk [2.9K]

Answer:

The correct answer is FtsZ is very similar to the tubulin subunit that form microtubules in eukaryotes.

Explanation:

FtsZ protein plays a significant role during bacterial cell division.FtsZ is a GTP binding protein and also contain GTPase enzyme that helps in the hydrolysis of ATP .

The principle function of FtsZ protein is to form filament in which the subunits are arranged in a specific manner.The filament then form a ring like structure which is called Z ring.

The movement of subunits of FtsZ generate force that helps the cell to divide.

3 0

3 years ago