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EleoNora [17]
3 years ago
15

After a heart attack, fibrosis occurs at the site of cardiac muscle cell death. this reduces the efficiency of the heart's pumpi

ng activity because __________.
Biology
2 answers:
Lelechka [254]3 years ago
6 0
After a heart attack, fibrosis occurs at the site of cardiac muscle cell death. This reduces the efficiency of the heart's pumping activity because Fiboros connective tissue is cannot contract.

Mkey [24]3 years ago
4 0

Answer:

The correct answer is - Fibrous connective tissue is incapable of contracting.

Explanation:

Fibrous connective tissue is one of the tissue that provides the support and structure to the heart. These tissues are dense connective tissues that also help in isolating the ventricles and the atria.

After the heart attack, the heart muscles become stiffens due to fibrosis at the site of the cardiac muscle death which makes which leads to the unable to fill the atria at one go so reduce the pumping of the blood.

Thus, the correct answer is - Fibrous connective tissue is incapable of contracting.

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A victim of foreign body airway obstruction become unresponsive. what is your first course of action?
Anna11 [10]
Answer:
Use a head tilt (tilting the head backward) and chin lift to prevent the tongue from obstructing the upper airway, and look for the foreign body that is causing the obstruction.

Explanation.
The backward head tilt and chin lift will prevent the tongue from obstructing airflow.
If the foreign object can be seen and removed, do so. Usually, it is not wise to use the fingers unless the foreign object is visible and accessible.

The next step is to perform CPR because the patient is unresponsive.
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3 years ago
How did the ecology of the african tropics change about 6 million years ago?.
Alborosie

Answer:this area experienced warming temperatures and significantly reduced rainfall, resulting in the formation of the Sahara Desert.

Explanation: hope this helps <3

6 0
2 years ago
All BUT one descriptive phrase applies to the illustration of water. That is
Elanso [62]
Are you referring to this question?

All BUT one descriptive phrase applies to the illustration of water. That is

A) water is a polar molecule.     

B) the empirical formula of water is HO.                    

C) the shape of a water molecule is bent. 

D) the molecular formula of water is H2O.


If you are, then the answer would be letter b. the empirical formula of water is HO.<span>  </span>

<span>>Water Molecular Formula</span><span>: H</span><span>2</span><span>O</span>

<span>>Water </span>Empirical Formula: H2O

5 0
3 years ago
The greatest degree of genetic variation would be found in offspring that result from
jok3333 [9.3K]

The greatest degree of genetic variation would be found in an offspring resulting from sexual reproduction.

<u>Explanation:</u>

Asexual reproduction produces very less variations. Asexual reproduction requires only one parent and thus the offspring would be very similar to the parent. The chance of variations in offspring is very less.

But the case of sexual reproduction is different. Sexual reproduction involved two parents and each parent contribute equal amount of genetic material to the progeny.

Some characters of the offspring will be like one or the other parent and some characters will be a combination of the characters of both parents . Such a combination produces variant offspring.

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3 years ago
I dont kno what is this because since this is layers of earth its hard for me
Angelina_Jolie [31]
Cant see the picture/question
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2 years ago
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