Answer:
Extension: Produced by the sartorius and quadriceps femoris group of muscles.
Flexion: Produced by the biceps femoris, semitendinosus, and semimembranosus muscles.
Explanation:
A - Never sign on with individuals who won't provide their names, addresses, phone numbers, and credentials.
Answer:asdasdasziasufsau9cbs9ufbasu9 csifbsuf
Explanation:snakesanke
Answer:
Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.
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Answer:
The skin
Digestive tract
Vagina
Mucous membrane
Explanation:
The skin prevents microbes from entering the body
Digestive tract e.g. stomach acid is a natural defence mechanism
The vagina is acidic and this prevents harmful bacteria from growing with it's own flora.
Mucous membranes e.g. lining of the mouth, nose, eyelids are all defense mechanisms.
