A gene mutation impacts a single gene, while a chromosomal mutation impacts part of a chromosome, which contains many genes. The answer is a chromosomal mutation.
Answer:
1-The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
2-The fluid represents the outermost layer of the alveolar surface that is directly exposed to air and thus to the environment. Alveolar fluid prevents desiccation of the epithelial cells and also functions as a physical protection barrier against inhaled particles and irritants.
3-The main function of surfactant is to lower the surface tension at the air/liquid interface within the alveoli of the lung. This is needed to lower the work of breathing and to prevent alveolar collapse at end-expiration.
4-The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic. The bronchioles eventually end in clusters of microscopic air sacs called alveoli.
5- i havent seen the video then how can i answer q5
Answer:
Mutations can occur during DNA replication if errors are made and not corrected in time.
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Acute myocardial infarction, digoxin is contraindicated in patients with ventricular fibrillation or in patients with a known hypersensitivity to digoxin.
Digoxin is a type of therapy which has no effect on mortality in heart failure .It is useful for maintaining clinical stability and exercise capability in patients with symptomatic heart failure. DIgoxin is helpful during severe heart failure , cardiomegaly and third heart sound .
Digoxin can't be useful if the pateint have ventricular fibrillation, it is ab arrhythmia that starts from ventricle is called ventricular fibrillation. Digoxin is also called as digitalis , helps in injured or weekend heart pump more efficiently and strengthen the force of heart muscles contractions , helps restore a normal , steady heart rhythm, and improve blood circulation.
To learn about more digoxin here
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Answer:
A cell is defined as the structural and functional unit of an organism.
The average size of the prokaryotic cell lies between 0.1 to 10 micrometers whereas the average size of the eukaryotic cell is approximately 25 micrometers.
Four things are found in all the cells: genetic material (either DNA or RNA), cell membrane, cytoplasm, and the ribosome.
All the living cells grow and reproduce (sexually or asexually) and have the ability to respond to stimuli.
Thus, characteristics of a cell may include: cell grows and reproduces, responds to stimuli, contains DNA or RNA, not both , and contains a cell membrane.
