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AnnZ [28]
3 years ago
7

Holding one's head slightly down when racewalking will make breathing more difficult.

Biology
2 answers:
Gelneren [198K]3 years ago
5 0

Answer: True

Explanation: i just to a Racewalking assignment and got True as the right answer

zysi [14]3 years ago
3 0

Answer:

the answer is TRUE

Explanation:

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Which of the other minerals on the scale can diamond scratch?
Olin [163]
<span><span>1 Corundum
</span><span>2 Topaz
</span><span>3 Quartz
4 </span><span>Orthoclase
</span><span>5 Apatite
6 </span><span>Fluorite
7 </span><span>Calcite
8 </span><span>Gypsum
</span><span>9 Talc
Are all answers to what diamond on a scale of minerals can scratch.

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3 0
2 years ago
Which of the following statements regarding proteoglycans is FALSE? Proteoglycans help tissues resist mechanical compression. Pr
Alexandra [31]

Answer:

 Proteoglycans are a major component of compact connective tissues but are relatively unimportant in watery tissues such as the jellylike substance in the interior of the eye.

Explanation:

these are protein that is divided into two classes which are  called large ans small Proteoglycans.

The large proteoglycans has a large number of highly sulfated glycosaminoglycan side-chains that tends to hold water and whereby making the tendon to resist compression while the  small proteoglycans are known to have a relationship with collagen fibrils which are known to regulate collagen fibril diameters. they help in signal regulation  usually  from the angle of intracellular compartments. the are known great for their large diversity especially in terms of different cores and different numbers of GAGs with different lengths and composition.

3 0
3 years ago
Which is a potential complication of a low pressure in the endotracheal tube cuff? aspiration pneumonia pressure necrosis trache
mart [117]
The answer is Aspiration pneumonia. The low pressure in the cuff of the endotracheal tube is a risk for the aspiration pneumonia while the high cuff pressure can cause ischemia, pressure necrosis and tracheal bleeding.Hope this would be of big help.
4 0
3 years ago
A second action potential cannot be generated until ________.
Bingel [31]

Answer:

"Action potential is a rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane with a characteristic pattern."

It is the mode through which a neuron transports electrical signals.

Explanation:

  • Option - (a) is the best choice to choose from,
  • <u>The refractory period :</u>

A second action potential cannot occur until the membrane has recovered or reestablished, this is the refractory period. The absolute refractory period coincides with inactivation of voltage-gated sodium channels which makes it impossible to generate another nerve impulse.

5 0
2 years ago
The process of converting food molecules into ATP for cellular energy is carried out in the organelle called the mitochondria.
Snowcat [4.5K]
True

Because the energy to drive ATP synthesis in mitochondria ultimately derives from the oxidative breakdown of food molecules, the phosphorylation of ADP to form ATP that is driven by electron transport in the mitochondrion
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3 years ago
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