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Nastasia [14]
3 years ago
15

Why must most antibiotics be given some time to take effect on a disease-causing population of bacteria?

Biology
2 answers:
Eva8 [605]3 years ago
8 0
The correct answer is d. "Regeneration" means "forming new cells," and signifies that the disease-causing bacteria cells are multiplying. When there are more of these cells, there is a higher chance for antibiotic resistance (making it take longer for the antibiotics to work). Once there is a smaller concentration of these bacterial cells, the antibiotics become more effective. 
DerKrebs [107]3 years ago
3 0

Answer:

The correct answer will be option-B

Explanation:

Antibiotic is the antimicrobial substance which inhibits the growth of the bacteria by interfering with different process and destroying the cell wall.

If the same antibiotic is used for the same colony of bacteria then bacteria can respond by becoming resistance to the antibiotic and as a result of this, the antibiotic becomes ineffective for the bacteria.

Since bacteria live for only a few days, therefore, the disease-causing bacteria dies off after a few days. The antibiotic then acts on the susceptible bacteria and kill the bacteria.

Thus, Option-B is the correct answer.

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What step in the carbon cycle didn’t exist before the industrial revolution?
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<u><em>Answer:</em></u>

<u><em>Combustion</em></u>

<u><em>Explanation:</em></u>

<u><em>The step in the carbon cycle didn’t really exist before the industrial revolution was Combustion</em></u>

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<u><em>please mark me brainliest <3</em></u>

5 0
3 years ago
Please help me with this question.
guajiro [1.7K]

Answer:it is a

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3 0
2 years ago
Why do individuals who suffer from brainstem injuries have difficulty with their autonomic functions?
scoundrel [369]

Answer: The brainstem controls autonomic functions through cranial nerves arising from it, along with the medulla oblongata, therefore an injury to the area can cause loss of these functions.

Explanation:

The brainstem comprises of the midbrain, and the pons and medulla of the hindbrain. It is in direct continuation with the spinal cord. Ten cranial nerves arise from this part, and a number of tracts pass through this region. The medulla of the brainstem are particularly involved in maintaining heart rate, breathing and blood pressure. In case of a brainstem injury, the cranial nerves responsible for autonomic functions could get damaged leading to dysfunction and/or the areas of medulla consisting of centres controlling heart rate, blood pressure or other autonomic functions, if damaged could cause difficulties.

4 0
2 years ago
Read 2 more answers
The aging process is thought to be initiated at the cellular level. Among the changes that can occur after a certain number of c
yKpoI14uk [10]

Answer:

Enhancement in the life expectancy of humans can exhibit certain unwanted outcomes that could affect the quality of life. Some of the probable social and ecological outcomes due to an increase in life expectancy are:  

Social: Greater life expectancy would signify that the age of employment would get extended. As an outcome, the older individuals would hold the seats for a longer duration, leaving only some seats for the young. This would influence the life quality and development of the young.  

Due to the increase in life expectancy, there would be an elevation in the demand for basic needs, and increased consumption of food increased utilization of land, and larger population. The use of global resources would increase by humans, therefore, declining the resources at a greater rate. Hence, overall, the ratio of the old to the young would get influenced, and therefore, the quality of life would get affected.  

Ecological: With longer life expectancy, there will be an enhanced burden of human species on the planet Earth. Due to this, the balance between the humans and the other species would get disturbed. Human activities have been substantially related to the issues of global warming, issues of deforestation, endangering of other species resulting in ecological imbalance.  

Enhancement in the life expectancy of humans would cause further destruction of endangered species and huge imbalance in the ecosystems that would eventually influence life of human beings. Therefore, ecological in combination with socioeconomic influence of greater life expectancy incline towards reduced quality of life, and it is not desirable.  

5 0
3 years ago
4
ivolga24 [154]

Answer:

The correct answer is:

planters (D)

Explanation:

The key statement in the question is that Andrew wants to apply pesticides and fertilizers to all his crops across his large land. The most effective way of doing this is by using a planter to apply both the fertilizer and the pesticide as the planting occurs. This will ensure that the fertilizers and pesticides are applied directly to the crops and not scattered on the vast land.

4 0
2 years ago
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