Untreated acute allergic reaction is a life-threatening situation because its symptoms can progress quickly. The most dangerous is the Anaphylaxis. It can be triggered by drugs, food, or injections, which a person may experience itching, swelling, difficulty in breathing, panic, and collapse. The worse is cardiac arrest when not treated immediately. Moreover, a prolonged illness may also develop as its late phase such as severe asthma.
Answer:
A.) NO₃⁻
Explanation:
NO₃⁻ = nitrate
NO₂⁻ = nitrite
NH₃ = ammonia
N₂ = nitrogen (nitrogen naturally exists as a diatomic molecule)
Answer:
Binary fission
Explanation:
The cell division process of prokaryotes, called binary fission, is a less complicated and much quicker process than cell division in eukaryotes. Because of the speed of bacterial cell division, populations of bacteria can grow very rapidly.
The invention of the electron microscope opened up many doors for biologists as it helped them to view and learn the appearance of cells and their sub-cellular structures
<h3>What is an electron microscope?</h3>
Electron microscope are microscopes which helps biologists to view the appearances of cells of organisms which cannot be seen with our nak -ed eyes.
Generally, electron microscopes:
- Uses a beam of accelerated electrons as its source of illumination
- Helps in obtaining high resolution images of biological and non-biological specimens.
- It is also used in biomedical research
In conclusion, electron microscope helps biologists to view, learn and to also understand the appearance of cells and their sub-cellular structures
Learn more about electron microscope:
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Answer:
The components of he respiratory system conduct air to the lungs ,such as the trachea (windpipe) which branches into smaller structures called Bronchi . The process of breathing (respiration) is divided into two distinct phases , inspiration (inhalation) and expiration (exhalation).
Explanation:
