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mihalych1998 [28]
3 years ago
14

The cells of a polar bear came from just one living cell. This cell divided many times. What part of the cell theory explains wh

y this idea is right?
Biology
2 answers:
Anna11 [10]3 years ago
8 0

Answer:

Am so sorry I can't help you I haven't learned that yet

Zinaida [17]3 years ago
3 0

Answer: Cells are made from existing cells

Explanation: The cell theory states that all cells are made from pre-existing cells.

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Help <br><br> someone that knows it
slamgirl [31]

Answer:

According to the image, the approximate QT interval is 0.4 seconds.

Explanation:

The QT interval is the space between the beginning of the QRS complex and the end of the T wave, which represents from the beginning of depolarization to ventricular repolarization.

Considering that the extandardized measurements of an EKG, where the paper circulates at a speed of 25 mm/s, 1 mm horizontal —measuring time— has an equivalence of 0.04 s.

In the image, there is 10 mm between the beginning of the QRS and the end of the T wave, so:

    0.04 seconds X 10 mm = 0.4 seconds.

Then, the estimated QT interval is 0.4 seconds.

7 0
2 years ago
Valence electrons are found...
Mazyrski [523]

Answer:

Last electron level

Explanation:

Valance electrons are always in the outside level!

Hope this helps!

6 0
2 years ago
Read 2 more answers
Drag and drop the appropriate labels into position to explain how this defect might cause mr. g's other problems.
marissa [1.9K]

How does Mr. G's altered blood flow explain his signs and symptoms? Drag and drop the appropriate labels into position to explain how this defect might cause Mr. G's other problems. Fill the boxes in order, starting with 1, then 2, etc

(Image attached)

Answer:

  1. When left ventricles contracts, some blood goes up through mitral valve into the left atrium, Turbulent flow through the valve causes systolic murmur. the atrium is overfilled and dilated.
  2. Because some blood re-entered the mitral valve, less is pumped out into the aorta. the ejection fraction is only 43%
  3. Less blood enters aorta, so SBP is low. Baroreceptor reflex causes increased heart rate; wall of overworked left ventricles becomes thicker
  4. Because its already partly full of blood from the ventricle, the left atrium accepts less blood from the lungs, the lungs overfilled with fluid; resulting in troubled breathing.

Explanation:

A murmur is a result from a abnormal blood flow to the heart.Its basically an unusual sounds that is heard between heartbeat A systolic murmur occurs when the heart muscles contracts. i.e they begin and end between S1 and S2.

From the above information, it seems like Mr G is experiencing mitral regurgitation. It is a condition where mitral valve doesnt close tightly and as a result the blood flows back from the left ventricle into the left atrium.

8 0
3 years ago
Nitrogen is important to life because it is part of _____. DNA, amino acids, and proteins plant photosynthesis the air we breath
Sever21 [200]

Well, nitrogen is the gas that makes up 78% of the earth's atmosphere. I would guess its in the air that we breathe. I am not really sure. Just basing this answer off of research.
8 0
2 years ago
Read 2 more answers
Why are watersheds important for the maintenance of water quality?.
avanturin [10]
Watersheds are important because the surface water features and stormwater runoff within a watershed ultimately drain to other bodies of water. It is essential to consider these downstream impacts when developing and implementing water quality protection and restoration actions. Everything upstream ends up downstream.
6 0
2 years ago
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