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Gennadij [26K]
3 years ago
8

The vaccine in a flu shot contains weakened flu viruses. How does a flu shot

Biology
2 answers:
trasher [3.6K]3 years ago
4 0

Answer:

The correct answer is option D. "It activates lymphocytes".

Explanation:

Vaccines based on weakened pathogens work by activating lymphocytes without producing a major infection, in what is known as producing an immunostimulating effect. This is the case for the flu shots, the weakened viruses activate lymphocytes to produce antibodies while the viruses are quickly eliminated. Next time the person is in contact with the flu virus, the immune system will be protected with the memory cells that were produced by activating the lymphocytes.

Gelneren [198K]3 years ago
3 0

Answer:

I wanna say A

Explanation:

i think thats right

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Zepler [3.9K]

Answer:

(1)Catalyst, (2) substrate, (3) active site, (4)activation energy, (5)induced fit, (6)cofactor, (7)denature

Explanation:

An example of an enzyme is carbonic anhydrase. It catalyzes the reversible reaction between water and carbon dioxide, in the body, to form carbonic acid. This reaction would normally be very slow but is sped up in the body. This allows the body to regulate the pH of the blood and also helps gets rid of carbon dioxide from the tissues.

8 0
3 years ago
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What is still lacking in the hypothesis of an asteroid impact as the cause of the end-cretaceous mass extinction?
Doss [256]

A convincing explanation of why some lineages survived while others vanished is still lacking in the hypothesis of an asteroid impact as the cause of the end-cretaceous mass extinction.

<h3>What is an asteroid?</h3>

One of the smaller planets in the inner Solar System is an asteroid. Asteroids are metallic or rocky bodies without an atmosphere, ranging in size from 1-meter pebbles to a dwarf planet with a diameter of over 1000 km.

The majority of the one million or more known asteroids are concentrated in the main asteroid belt, which is 2 to 4 AU from the Sun and between the orbits of Mars and Jupiter. The three categories of asteroids that are typically recognized are C-type, M-type, and S-type.

These were given their names and are frequently associated with, respectively, carbonaceous, metallic, and silicaceous compositions. The largest asteroid, Ceres, has a diameter of over 1,000 km (600 mi), making it a dwarf planet.

To learn more about an asteroid with the help of given link:

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8 0
2 years ago
Is mitosis a form of sexual or asexual reproduction
Goshia [24]

Answer:

asexual

Explanation:

I looked it up online

8 0
3 years ago
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Why is an overabundance of nutrients harmful to a water supply?
Margaret [11]

Answer:

D

Explanation:

when when lakes receive an overabundance of nutrients they can become polluted by excessive amount of algae.

8 0
3 years ago
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marta [7]

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Animal cells don't have cell wall rather they have cell membrane as it's outermost covering and they have smaller vacuoles.They also don't have plastids.They have centrosome which is not found in plant cells.

6 0
2 years ago
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