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Amanda [17]
3 years ago
14

Which cells quickly respond to produce antibodies on second exposure to the same antigen?

Biology
1 answer:
Vilka [71]3 years ago
6 0

Answer:b-cells produce antibodies or (memory b-cells)

Explanation:B cells are one of the two types of lymphocytes, the other kind being T cells. B-cells have a very specific function: the production of antibodies, which play a major role in immunity. Memory cells remember specific foreign invaders, pathogens, and antigens to fight them off if they come back in the future.

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Each sentence describes an interaction between two of Earth’s spheres. Match each sentence with the spheres that are interacting
galina1969 [7]

The answers would be the following:

Geosphere and hydrosphere - water vapor condenses on a glass.

Hydrosphere and biosphere - Grady swims in the ocean.

Biosphere and atmosphere - Lena takes a deep breath

Atmosphere and geosphere - gusty winds weather sandstone in the desert.

If you'd like to know why:

Geosphere involves the solid part of the Earth, so that would mean it involves the rocks, land, and the like.

Hydrosphere involves water, your clue there would be hydro, which means water.

Atmosphere involves the air around us, which includes winds.

Biosphere refers to the biotic components. Bio means life, so we consider living things here.

Now all those spheres interact with each other, and it is through this interactions that our world is formed and how our Earth is able to sustain life.

Taking into consideration the features of each sphere, you can see that Grady is a <u>living organism </u>and the ocean is made up of <u>water. </u>

<em>Hence, hydrosphere and biosphere are interacting. </em>

Lena is a <u>living organism</u>, and she is breathing in <u>air</u>.

<em>Hence, biosphere and atmosphere are interacting.</em>

Water vapor is made up of <u>water, </u>and glass is a <u>solid </u>found on Earth. (Not really a good example of interaction between these two spheres)

<em>Hence, hydrosphere and geosphere are interacting. </em>

Lastly, gusty winds is part of the atmosphere and sandstone is a type of rock.

<em>Hence, Geosphere and atmosphere are interacting.</em>

4 0
4 years ago
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Which of the following is not a property of an acid?
kondaur [170]
Answer: D. helps in digestion
Explanation: Gastric juice in the stomach contains HCL which creates an acidic condition(pH1.5-2.0) which is optimal for the action of enzymes in the stomach. HCL stops the activity of salivary amylase & helps to kill bacteria in food. It doesn’t help in digestion cuz it is not an enzyme.
7 0
3 years ago
How do organ cultures differ from cell cultures
MaRussiya [10]

Answer:

Cell culture is when cells are grown under controlled conditions and usually outside of their natural environment. Organ culture like culturing roots, root hairs ,shoot tip, buds, cotyledons ,ovules ,pollen grains, young leaves, these are organs. Hoped I helped!

Explanation:

8 0
3 years ago
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All populations of organisms undergo the process of adaptation to suit themselves to their environment. They change over a perio
katovenus [111]

That is true. This is called adaption.

4 0
3 years ago
6. Which of the following statements best describes one way that the Moon is different from
scoray [572]

Answer:

b. The Moon has no gravity.

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3 years ago
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