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liberstina [14]
3 years ago
11

Why is the skin a good defense for the immune system?

Biology
1 answer:
Pavel [41]3 years ago
6 0
Because it's an outer layer protecting everything inside the body, and we are practically covered in it with few opportunities / holes where bacteria can enter to cause difference to the immune system. 
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Anaerobes carry on whereas aerobes carry on cellular respiration
Tcecarenko [31]

Answer:

Anaerobes carry on cellular respiration in the absence of oxygen, whereas aerobes carry on cellular respiration in the presence of oxygen.        

Explanation:

Many of the cell processes needed need some energy to occur. Cellular respiration is the process by which cells degrade organic compounds and turn them into energy. Cellular respiration follows two ways, which depend on the presence or absence of oxygen, and both of them begin with the process of glycolysis, which occurs in the cytoplasm and does not need oxygen to occur.

<u>Aerobic Respiration</u>

  1. Occurs in the presence of free oxygen.
  2. Series of reactions by which pyruvic acid (product of glycolysis) turns into CO₂ and H₂O, producing many ATP molecules.
  3. Respiration occurs in the mitochondria.
  4. Takes place in two steps or stages: Krebs cycle and electron transporter chain.
  5. Glycolysis and Krebs cycle produce electrons, which then travel along the electron transporter chain while releasing energy, and ATP is produced.

<u>Anaerobic Respiration </u>

  1. Occurs in the absence of free oxygen
  2. Series of reactions by which using pyruvate (product of glycolysis) 2 ATP molecules van be produced.
  3. There are two ways in which anaerobic respiration can be produced: lactic fermentation and alcoholic fermentation.
  4. Lactic fermentation produces lactic acid and 2 ATP
  5. Alcoholic fermentation occurs in two steps, and the final products are ethylic alcohol, 2ATP, and 2 CO₂
  6. The whole anaerobic process occurs outside the mitochondria.
6 0
3 years ago
Help me plz for free robux(to join my group)
Y_Kistochka [10]
The first one is D
A goes with T
C goes with G
And to remember this just think of (A)pple (T)ree
And then (C)ar (G)arage
6 0
2 years ago
The findings from cross-cultural research on the rates of births to unmarried mothers in 10 industrialized nations indicate that
Jlenok [28]
There have been sharp increase in birth to unmarried mothers in all the countries except in JAPAN. Recent research study on global children trend indicate that, the country where children are most likely to be reared by married parents is Japan, where giving birth to children out of wedlock is rare. The country also exhibit high marriage rate and cohabitation is rare.
8 0
3 years ago
Reptiles are better suited to dry land than their amphibian ancestors because
Vaselesa [24]

Answer:

<u><em>All of the above.</em></u>

Explanation:

1. Their watertight skin minimizes moistures loss: <em>Reptiles have a reputation that they are “slimy” when we touch and hold them; however, they have dry skin, which has even fewer glands than mammals or amphibians. The main special feature of their skin is that the epidermis is heavily keratinized with a layer, which also prevents water loss.</em>

2. Amphibians must lay eggs in water or in moist soil to reduce moisture loss: <em>Because amphibian eggs don't have an amnion, the eggs would dry out if they were laid on the land, so amphibians lay their eggs in water.</em>

3. Reptile egg shells are harder than amphibians' eggs: <em>Reptile eggs are coated with a leathery or brittle coating, and the animals that hatch from them are miniature versions of the full-sized animal parent. In contrast, amphibian eggs are transparent and jelly-like. The animals that hatch from them still must go through metamorphosis.</em>

<u><em>Hope this helps you have a better understanding:) !!</em></u>

7 0
2 years ago
Explain the 5 steps of scientific thinking
Oksanka [162]
1
state the problem

2
hypothess (prediction)

3
design the experiment

4
record and analyze the date

5
conclusion (what did you learn)
8 0
3 years ago
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