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topjm [15]
3 years ago
10

Which body system is responsible for protecting the body against infection?

Biology
1 answer:
Rainbow [258]3 years ago
8 0

Answer: The immune system

Explanation:

The immune system is a complex network of proteins and cells that defends the body against infection or any invasion. The human defense system in the body is actually made up of entire organs and vessel systems like the lymph vessels. The immune system is made up of organs that control the production and maturation of certain defense cells.

Initially, all living things are subjected to attack from disease causing agents. Even bacteria, so small that more than a million could fit on the head of a pin, have systems to defend against infection by viruses. This kind of protection gets more sophisticated as organisms become more complex.

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Which of the following is not a factor that has contributed to agricultural success in the US? A. expansive infrastructure and m
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Controlled population growth.

Explanation:

US is a highly developed  country and it has expansive infrastructure and highly mechanized agricultural equipments. So first option is not a choice. Second, access to chemical fertilizers and pesticides in a country with such advanced agriculture infrastructure is very easy. Third US is well known for using GM crops.  

US does not have a controlled population growth because if not the birth rate then  migration of people to US is a major concern for that country. Thus, this will be a correct choice for the given question.

6 0
2 years ago
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The black dotsThe black dots represents the solute. Identify the type of solution below.
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The answer is the solution is hypotonic solution since there are less solute in the solution , indicating that there is more water in solution .

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2 years ago
What two word name makes up the scientific name of each kind of organism?
aleksandr82 [10.1K]
The two words are Genus and Species.
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If 20% of the long-tailed cats got their tails stuck in something and failed to reproduce, what would be the expected change in
den301095 [7]

Complete question:

Phenotype               Genotype         Number of Individuals

Long-tailed                     TT                               260

Long-tailed                      Tt                                160

Short-tailed                      tt                                 80

If 20% of the long-tailed cats got their tails stuck in something and failed to reproduce, what would be the expected change in frequency of T in the next generation

Answer:

The expected change in allelic T frequencies probably changes from 0.6 to 0.57 in the following generation.  

Explanation:

Due to technical problems, you will find the complete question, answer and explanation in the attached files.

Download pdf
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What is the primary cause of respiratory distress syndrome (rds) of the newborn?
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https://medlineplus.gov/ency/article/001563.htm
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