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Kryger [21]
3 years ago
14

Scientists and physicians have developed vaccines against a variety of infectious diseases. How does administering a vaccine pro

tect the body from an infection? A. The vaccine stimulates the bone marrow to release more immune system cells, which attack and remove pathogens. B. The vaccine stimulates cells of the immune system to produce antibodies against a wide variety of pathogens. C. The vaccine stimulates cells of the immune system to produce antibodies against a specific pathogen. D. The vaccine acts like cells of the immune system by attacking a specific pathogen.
Biology
2 answers:
inysia [295]3 years ago
4 0

Answer:

C

Explanation:

zhannawk [14.2K]3 years ago
3 0

Answer:

C

Explanation:

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What are your thoughts on climate change? Explain 4-5 sentences
densk [106]

Answer:

I think climate change can be either fake or real. I do believe temperatures are rising, but if you look at the history of the earth, it's gone through many ice ages and changes, so I would assume that it is no big deal. There is no evidence that temperatures are rising at a deadly rate, but weather has been unpredictable for a while now. Then again, these are my thoughts on climate change, so I'm not sure if I'm right or wrong. Hope I gave some useful information!

Explanation:

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3 years ago
write a 5-7 paragraph explaining what you think is happening to the earths co2 levels through the year.
jeka57 [31]

Answer:

Climate change has been described as one of the biggest problems faced by humankind. Carbon dioxide is is the primary driver of global warming. Prof Joanna Haigh from Imperial College London explains why this gas has played a crucial role in shaping the Earth's climate.

Carbon dioxide (CO2) has been present in the atmosphere since the Earth condensed from a ball of hot gases following its formation from the explosion of a huge star about five billion years ago.

At that time the atmosphere was mainly composed of nitrogen, CO2 and water vapour, which seeped through cracks in the solid surface. A very similar composition emerges from volcanic eruptions today.

As the planet cooled further some of the water vapour condensed out to form oceans and they dissolved a portion of the CO2 but it was still present in the atmosphere in large amounts.

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3 years ago
"all life is full of suffering, pain, and sorrow" is one of buddhism's four noble truths.
Akimi4 [234]
This is true, it is the first noble truth in buddhism
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3 0
3 years ago
What is environment?​
Tju [1.3M]

The surroundings or conditions in which a person, animal, or plant lives or operates.

The natural environment encompasses all living and non-living things occurring naturally, meaning in this case not artificial. The term is most often applied to the Earth or some parts of Earth.

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3 years ago
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2.Which of the following is NOT an example of symbiosis? A. red blood cells containing malaria. B. vines using a tree for suppor
omeli [17]

Answer:

<u>A. red blood cells containing malaria</u>

Explanation:

Malaria is a disease-causing pathogen in humans. It is caused by species of the parasite <em>Plasmodium sp.</em><em>,</em> which is transmitted as sporozoites by the Anopheles mosquito upon biting the host. These travel through the bloodstream to the liver where they mature into merozoites. These reenter the bloodstream and mature into trophozoites and schizonts that produce more merozoites.

When they multiply within the red blood cell, they <u>burst the red blood cell open</u>, and go on to infect other cells. This infection's symptoms are cyclic and include high fever, chills and other flu-like symptoms.

Malaria is a deadly illness, causing harm to its hosts, and in many cases death. <u>Thus, this cannot be defined as symbiosis, which is typically beneficial to both organisms.</u>

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3 years ago
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