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algol13
3 years ago
9

White blood cells are an important component of our immune system. One thing they do is consume and destroy bacteria by extendin

g their plasma membrane around the bacterium and bringing it inside the cell in a vesicle. By what process do they engulf the bacterium? White blood cells are an important component of our immune system. One thing they do is consume and destroy bacteria by extending their plasma membrane around the bacterium and bringing it inside the cell in a vesicle. By what process do they engulf the bacterium? phagocytosis pinocytosis exocytosis transcytosis receptor-mediated endocytosis
Biology
1 answer:
hammer [34]3 years ago
7 0

Answer: Phagocytosis

Explanation: this is one of the various ways in which the immune system fights against bacteria and other pathogenic organisms. It does this by extending its plasma membrane outwards forming a structure like a pseudopodia which it utilises to engulf the invading organism.

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1)In your own words explain what air pollution is
Anna11 [10]

Explanation:

Question 1

Air pollution is the introduction of harmful gases and substances into the atmosphere that renders it unfit for use for life. Some of these toxic gases and particulates are:

  • Carbon monoxide
  • Carbon dioxide
  • Nitrogen oxides
  • Smoke
  • Dust particles
  • Soot

Question 2

Natural forms are the original nature or outlook of a substance. Examples of natural forms are:

  • Flowers
  • Leaves
  • Animals
  • Rocks
  • Shells
  • Corals

Question 3

Anthropogenic cause of pollution are human causes of pollution. Some of these are:

  • Combustion of fossil fuels in internal combustion engines release harmful and toxic gases into the atmosphere and causes hair pollution.
  • Improper disposal of waste can produce effluent that reaches the ground water system and other fresh water sources.
  • Noise pollution from airports is very harmful to ear.
  • Mining activities degrades soil and removes rich fertile soils that should be used for agriculture.
  • Mining wastes can lead to contamination of water bodies around.

Question 4

Fossil fuels are fuel types that forms from natural process in which organisms are decomposed anaerobically to preserve their energy components. Some of these fuels are:

  • Coal
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Question 5

  • Heart diseases ; ischaemic heart diseases can lead to failure of the heart when it does not receive enough oxygen from the environment. Air pollution contaminates available oxygen in the atmosphere and this is very dangerous to life.
  • Lung cancer: poor air quality can lead to the development of cancerous tumor in the lungs.
  • Asthma: air pollution is one of the leading cause of asthma.

Other notable mentions are bronchitis, pulmonary diseases, stroke

Question 6

_7 million____ people die each year from air pollution according to the world health organization

Question 7

Air Quality Index(AQI) is an indicator used to express the quality of air in particular area. The AQI can tell the present air quality condition. It can also be used to forecast future air quality in years to come.

It shows how clean and polluted the air is.

Question 8

The air quality index uses different colors to alert people about the quality of air. Each color represents different health implication of air quality:

     Attached image shows the different colors used to alert people of about the air quality.

Question 9

  • About 7 million people die annually as a result of air pollution
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Learn more:

Air pollution brainly.com/question/10743354

#learnwithBrainly

3 0
3 years ago
Which statement describes thylakoids
ivolga24 [154]
Thylakoids are membrane-bounded structures that contain chlorophyll.
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3 years ago
What are some factors that would promote the gtowth of a town into a large city?
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Some of the factors are:
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What might cause the average temperature of Earth to increase?
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Bogdan [553]

Answer:

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Acacia trees.

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River bushwillow.

Kangaroo paws.

Star grass.

Lemongrass.

6 0
2 years ago
Read 2 more answers
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