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Alja [10]
3 years ago
14

What does an electrocardiogram measure?

Biology
2 answers:
Natalija [7]3 years ago
8 0
Answer is D.

The ECG picks up electrical activity (action potentials) in the heart.
elena-14-01-66 [18.8K]3 years ago
6 0
The electrocardiogram (ECG or EKG) is a diagonostic tool that is routinely used to assess the electrical and muscular functions of the heart. The heart is a two stage electrical pump and the hearts electrical activity can be measured by electrodes placed on the skin.
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What factors may affect the success of the decellularization process? ​
Amiraneli [1.4K]

Answer:

Decellularization is the process used in biomedical engineering to isolate the extracellular matrix (ECM) of a tissue from its inhabiting cells, leaving an ECM scaffold of the original tissue, which can be used in artificial organ and tissue regeneration. Organ and tissue transplantation treat a variety of medical problems, ranging from end organ failure to cosmetic surgery. One of the greatest limitations to organ transplantation derives from organ rejection caused by antibodies of the transplant recipient reacting to donor antigens on cell surfaces within the donor organ. Because of unfavorable immune responses, transplant patients suffer a lifetime taking immunosuppressing medication.

3 0
3 years ago
What is the only common infection of the reproductive tract caused by a protozoan?
Gala2k [10]

Answer:

Trichomoniasis

Explanation:

Trichomoniasis is an sexually transmitted disease that affects around 30% of world population. The common symptoms are frequent urge to urinate, vaginal bleeding, burning sensation during urination.

The causative agent of trichomoniasis is a protozoa called <em>Trichomonas vaginalis</em>. This protozoan can be transfer through the genital contact. The protozoa can easily be transfer from affected individual to the healthy individual.

Thus, the correct answer is option (3).

6 0
3 years ago
How are land, air, water and living things impacted by too much carbon dioxide?
choli [55]

Answer:

- In terrestrial environments: increasing CO2 levels cause an increased photosynthetic rate

- In aquatic environments: increasing CO2 levels cause an increase in water acidity  

- In both terrestrial and aquatic environments: increasing CO2 levels lead to an overall increase in the average temperature (global warming)

Explanation:

In terrestrial ecosystems, rising carbon dioxide (CO2) levels increase the rate of photosynthesis (since CO2 is one of the reactants in photosynthesis), thereby also increasing plant growth. Moreover, in aquatic ecosystems, rising CO2 concentrations increase the levels of this gas dissolved on the surface of the oceans. This increases the acidity of the oceans, thereby modifying habitats and food web structures. The increasing acidity of the oceans also reduces the amounts of carbonate, which difficult for aquatic species (e.g., corals) to form their shells/skeletons. Finally, CO2 is a greenhouse gas that contributes to the increase in the average temperature by absorbing solar radiation that would otherwise have been reflected by the Earth's surface, and this increase in the temperature negatively affects life in both terrestrial and aquatic environments.

5 0
2 years ago
Age structure data include all of the follow-
schepotkina [342]

Answer:

The answer is c.

Explanation:

Age structure data can include all of these aspects except for c I believe.

6 0
3 years ago
A scientist was studying bones from an individual who died thousands of years ago. Which portion of the bones was the scientist
ludmilkaskok [199]

Answer: Minerals

Explanation: The body decomposes and after about 40 to 50 years bones are mostly brittle and dry with no traces of flesh. After thousands of years bones also disintegrate (decay) leaving brittle mineral frame. The life of bones is determined by the soil type its buried in, nuetral soils takes longer then acidic soil condition.

In this case osteocytes(bone cells) are the first to decompose followed by the cartilage and bone marrow, leaving behind mineral traces that scientist can study after thousand years.

7 0
3 years ago
Read 2 more answers
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