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almond37 [142]
3 years ago
5

Which theory of aging suggests that mechanical functions of the body work less efficiently as people age?

Biology
1 answer:
enyata [817]3 years ago
5 0

It is the wear and tear theory of ageing.

The wear and tear theory defends that ageing is caused by the damage that happens as time goes by to cells and body systems. The name of the theory reflects this idea of wearing out - the organism is worn out and doesn't function normally. This is the theory that's accepted more generally as common sense but there are other theories of ageing that see the process as a more intentional process.

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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
4 years ago
LIST THESE BY GREATEST NUMBER OF PROTONS, please.
GarryVolchara [31]

Answer:

Hydrogen, Lithium, Aluminum, Argon, Nickel, Iodine, Gold, Mercury

 

Explanation:

Hydrogen has 1 proton.

Lithium has 3 protons.

Aluminum has 13 protons.

Argon has 18 protons.

Nickel has 28 protons.

Iodine has 53 protons.

Gold has 79 protons.

Mercury has 80 protons.

Hope this helps.

3 0
3 years ago
7. What does it mean for a species to be in stasis?
miskamm [114]
Stable to be in stasis
8 0
3 years ago
Chum salmon (Oncorhynchus keta) are born in freshwater environments and then migrate to the sea Near the end of their lives, the
Anna35 [415]

Answer:

c. Acclimatization

Explanation:

Acclimatization is the process in which an individual adjusted itself in order to respond adequately to a change in its environmentm- in this case, the change from sea water to freshwater- and maintain good performance. Acclimatization  occurs in a short period of time and <em>within the organism's </em><em>lifetime </em><em>. </em>This last part is an important difference between acclimatization and adaptation, becasue an adaptation is a change that has taken place over many generations.

3 0
3 years ago
An organism's genotype is its
lana [24]

Answer:

An organism's genotyoe is its specific conbination of alleles for a given gene.

Explanation:

5 0
3 years ago
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