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MrRa [10]
3 years ago
9

HELP ME !!!!!!!!!!!!

Biology
1 answer:
tekilochka [14]3 years ago
7 0
Question 2 is false because it is always opposite. Question 3 Ionic charge in which valence electrons are lost from one atom and gained by another one hoped it helped.
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Which component of the electrocardiogram represents the duration of ventricular contraction?
Advocard [28]

QRS complex refers to the combination of the Q, R, and S waves, and indicates ventricular depolarization and contraction (ventricular systole).

Ventricular rate can be calculated by determining the time interval between QRS complexes. The duration of the QRS complex is normally 0.06 to 0.10 seconds. This relatively short duration indicates that ventricular depolarization normally occurs very rapidly.

P QRS and T waves in electrocardiogram signifies the P wave in an ECG complex indicates atrial depolarization. The QRS is responsible for ventricular depolarization and the T wave is ventricular repolarization.

To learn more about ventricular depolarization  , here

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5 0
2 years ago
What organic molecules must be included in the soil for earthworm nutrition?
tankabanditka [31]

<span>The organic molecules that must be included in the soil for earthworm nutrition are Neutral pH. A neutral pH substance that is neither basic nor acidic is considered neutral. The pH scale is the one that measures how a substance is basic or acidic. It ranges from 0-14. A 7 pH is neutral.</span>

6 0
3 years ago
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The practice of cells turning on the production of some enzymes and turning off others in response to a changing environment is
Andru [333]

Answer:

Adaption

Explanation:

In the case when the practice of cells turn on some enzymes production and turn off the others so that the response to the environment i.e. changed is known as an adaption.

In this,  the organisms are adjusted according to the environment

So as per the given statement, the adaption is the answer and the same is to be considered

4 0
2 years ago
Which vegetable is found in chicken divan? asparagus, brocoli, corn?
saul85 [17]
Broccoli is found in it

hope it helps
6 0
3 years ago
Protein malnutrition can result in a moderate anemia. which of the below-listed vitamins would be most likely to be associated w
damaskus [11]
Anemia is a medical condition in which there is a decrease int the total amount of red blood cells in the blood and it always results in lowered ability of the blood to carry oxygen. Vitamin B12 is needed to make red blood cells and lack of Vitamin B12 can lead to aneamia. So, the vitamin that is most associated with aneamia condition is VITAMIN B12.
5 0
3 years ago
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