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Roman55 [17]
3 years ago
10

Identify how the physical barriers of the the immune system protect the body against pathogens

Biology
1 answer:
BabaBlast [244]3 years ago
7 0

Answer:

They help to stop harmful germs from entering the body

Explanation:

  • The skin can prevent bacteria and microorganisms from entering the body (unless it is damaged)
  • Mucous membranes line the mouth and nose and are coated with secretions that fight microorganisms and harmful bacteria
  • Tears help to clear debris from the eye to prevent infection
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What is the definition of sodium potassium pump
Stells [14]

sodium-potassium pump. n. The enzyme-based mechanism that maintains correct cellular concentrations of sodium and potassium ions by removing excess ions from inside a cell and replacing them with ions from outside the cell.

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The root cap is a tough structure that protects the
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Protects the growing tip of the plant
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3 years ago
The flow of air caused by ____ and the Coriolis effect creates distinct wind patterns on Earth's surface. a. differences in heat
kakasveta [241]
<h3><u>Answer;</u></h3>

Differences in heating

The flow of air caused by <u>differences in heating </u>and the Coriolis effect creates distinct wind patterns on Earth's surface.

<h3><u>Explanation</u>;</h3>
  • <u>Movement of air or flow of air is caused by pressure or temperature differences and is experienced as wind.</u> When there is a pressure difference between two places, a pressure gradient exists, across which air moves from the region of high pressure to the region of low pressure.
  • <em><u>Differences in temperature also causes movement of air or wind know as convection. The air flow caused by temperature difference is observed in the case of sea and land breezes, because of the difference in temperature between the sea and the land.</u></em>
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3 years ago
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A soil profile with labels O, A, B, C. O: top layer. A: second layer. B: third layer. C: bottom layer. Examine the soil profile
Savatey [412]

Label O is organic material, label A is topsoil, label B is subsoil and label C is weathered rock. They represent different soil layers.

<h3>Soil layers</h3>

Soli layers, also called horizons, refer to the different layers observed on the ground.

The topsoil is a layer of soil composed of a mixture of sand, silt, clay and organic material referred to as humus.

Weathering rocks refer to the dissolved rocks and/or minerals on the Earth's surface.

Subsoil refers to the layer under the topsoil on the surface of the ground.

Learn more about soil layers here:

brainly.com/question/1933157

5 0
2 years ago
In goats, the gene for coat color is on an autosome and light brown color is dominant to black. A light brown male is mated to a
Llana [10]

Autosomal dominant condition occurs when alleles of genes present on chromosomes in the autosomes (somatic) mask the effect of the other allele.

They can produce a light brown kid and the chances of producing this is 50%.

  • Light brown color is dominant to black. A light brown male is mated to a black female, producing a black kid.
  • For the two to produce a black kid which is in the recessive condition, the male has to be heterozygous for the condition (Bb).

Let light brown be (BB or Bb)   and black be (bb)

Parents :                   B b     x      b b

Offspring genotype:      Bb      bb

Ratio:                               1    :     1  (50%)

Learn more about autosomal dominance: brainly.com/question/7135379

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