Defective receptor on a cell membrane would have the least effect on Diffusion.
Because the common cold is cause by a ‘virus’.......
The answer is VIRUS
Explanation:
Muscles act on joints antagonistically. Some muscles will contract while other contract pulling on bones around joint hence enabling movement. An example is the elbow joint is moved by antagonistic action of biceps and triceps. When your biceps contract and triceps relax you are able to bend your arm at your elbow. When your triceps contract and biceps relax, your arms straighten.
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Learn more about muscle action on joints;
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Answer:
Option (A).
Explanation:
Infection may be defined as the invasion of pathogens into the body's tissue of the organism. Various organisms like bacteria, fungi, virus and plasmodim can acts as a pathogen for the organism.
The secondary infection may be defined as the infection that occurs after the treatment of the previous infection. This infection may occur due to the changes in the immune system or by the treatment of the previous infection.
Thus, the correct answer is option (A).