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almond37 [142]
4 years ago
12

1. Investigate the different parts of the human immune system and explain which cells/products of innate and adaptive immunity a

re responsible for recognizing antigens on the surface of T. brucei and clearing the parasite.
Biology
1 answer:
scoundrel [369]4 years ago
3 0

Answer:

They are neutrophils, eosinophils, basophils, lymphocytes, and monocytes.

Out of these ones the T-cells are responsible for recognizing antigens on the surface.

Explanation:

T cells

Killer T cells

Killer or cytotoxic T cells scan the surface of cells in the body to see if they have become infected with germs, or if they have turned cancerous. If so, they kill these cells.

Helper T cells

Helper T cells "help" other cells in the immune system to start and control the immune response against foreign substances.  

Regulatory T cells or Tregs

Tregs control or suppress other cells in the immune system. They have both helpful and harmful effects.

Memory T cells

Natural killer T cells

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A palavra átomo tem origem grega,com o significado de indivisível.Por que esse termo foi escolhido para descrever as partículas
earnstyle [38]
  • Translated from Portuguese language:

"The word atom has a Greek origin, meaning indivisible. Why was this term chosen to describe the particles that form matter? Is the atom really indivisible?".

Answer:

  1.  An atom is termed as the basic unit for generating or creation of the different complex structures, as they are characterized by the different shapes and properties due to position or alignment of the different number of atoms inside the given parameters or are of the object.
  2. It was a belief in the early times that atom is not divisible further in to small sub atomic parts, this concept was improved by the experiments of the cathode ray tube etc.          

Explanation:

  • However, the atom is comprised of the following subatomic particles which are as follows:
  1. The nucleus is comprised of the protons(positrons) and neutrons.
  2. While, the outer region or the cloud is comprised of the electrons inside the different shells and orbits.
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3 years ago
An exocrine gland that has an unbranched duct would be classified as a __________.
Firdavs [7]

Answer:

B) Multicellular Simple gland

Explanation:

Exocrine Glands:Glands that secrete their products onto the apical(or epithelia) surface directly or via epithelial ducts or tubes that are connected to the apical surface. These Exocrine glands are composed of highly specialized epithelial cells..

Exocrine glands can either be branched or Unbranched based on the arrangement.

*Multicellular simple glands*:Glands that have an *unbranched duct* into which cells secrete. Each secretory portion empties separately on an epithelial surface.

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torisob [31]
A body of rock would most likely exhibit brittle behavior under the condition of LOW TEMPERATURE.
At low temperature, the water in the crevices of the rock will freeze up, the freezing up of this water causes fractures in the rocks  and as time goes on the rocks become brittle and parts of it will start falling away.<span />
5 0
3 years ago
What animal needs to wear a wig?
azamat
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6 0
4 years ago
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jekas [21]

Answer:

It will be pink

Explanation:

8 0
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