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Delicious77 [7]
3 years ago
8

In mammals the powerful muscle that aids in breathing is the A. diaphragm. B. kidney. C. cerebrum. D. placenta.

Biology
2 answers:
eimsori [14]3 years ago
8 0
In mammals, the powerful muscle that aids in breathing is the diaphragm. This muscle expands and contracts the chest cavity and forces air in and out of the lungs.
Hope that helped =)
BlackZzzverrR [31]3 years ago
8 0
The diaphragm is the powerful muscle that aids in breathing. 

Hope this helped! Have a nice day!
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When did the mass extinction occur? (Name the era and period)
kherson [118]

Answer:

Explanation:

The first mass extinction is called the Ordovician-Silurian Extinction. It occurred about 440 million years ago, at the end of the period that paleontologists and geologists call the Ordovician, and followed by the start of the Silurian period. In this extinction event, many small organisms of the sea became extinct.

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3 years ago
Part C
Butoxors [25]

Minerals are identified according to their properties. One of these properties is their breaking tendency: <em>cleavage</em><em> or </em><em>fracture</em>.<em> Cleavage: Calcite, mica, muscovita, pyroxene. Fracture: Quartz, Asbestos, Limestone.</em>

<u><em>Note</em></u><em>: Since I do not know which your 10 minerals are, I will provide examples of each type according to the breaking tendency.</em>

Many properties of minerals are used to identify them, such as <em>color, density, hardness,</em> among others. In this case, we are talking about their <u>breaking tendency.</u>

<h3 /><h3>How do minerals break?</h3><h3 />
  • Minerals can cleave or fracture.

  • A type of mineral breaks always in the same, and this is why the breaking tendency is useful to identify them.  
<h3 />

<u>- Cleavage</u>

  • The mineral breaks in flat smooth planes.

  • Cleavage direction and smoothness of surfaces are significant when identifying.

<u>- Fracture</u>

  • The mineral break in irregular planes.

  • In these minerals, there is no particular breaking direction.

<h2 /><h3>Examples</h3>

<u>- Cleavage</u>

  • Calcite
  • Mica
  • Muscovite
  • Pyroxene
  • Halite
  • Feldspar
  • Gypsum

<u>- Fracture</u>

  • Quartz
  • Asbestos
  • Limestone
  • Beryl
  • Chromite
  • Agate
  • Copper

You can learn more about fracture and cleavage at

brainly.com/question/22061284

brainly.com/question/2311110

8 0
2 years ago
1. Parasites are commonly associated with which food?
Dvinal [7]
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8 0
3 years ago
Natural selection is random, genetic mutations are NOT.<br> O True<br> O False
SpyIntel [72]
False . Genetic mutations are random
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What natural mechanism the body uses to maintain homeostasis give 2 examples
densk [106]

Answer:

1,food

2,movement

Explanation:

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3 years ago
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