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padilas [110]
3 years ago
14

Which of the following statements about the germ layers is NOT correct?

Biology
1 answer:
ahrayia [7]3 years ago
7 0

Answer:

The endoderm gives rise to the nervous system.

Explanation:

Gastrulation is the process that occurs during the third week of embryonic development and includes transformation of embryonic disc with epiblast and hypoblast into a three layered embryonic disc made up of ectoderm, mesoderm and endoderm. These are the three primary germ layers and give rise to various tissues and body organs.

Endoderm of the embryo give rise to epithelial lining of gastrointestinal tract (except the buccal cavity), respiratory tracts and other organs such as gallbladder, liver,etc. Mesoderm forms connective tissues such as bones as well as muscles and peritoneum. All the tissues of nervous system and epidermis of skin are derived from ectoderm.

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A respiratory rate of less than ________ and greater than ________ in cases of trauma are criteria for immediate transportation
vovikov84 [41]

The question is incomplete as it does not have the options which are:

A. 8; 32

B. 10; 29

C. 12; 20

D. 5; 45

Answer:

The correct answer will be option-B

Explanation:

Trauma is the experience caused by the life-threatening events or events which help develop the psychological distress conditions.

The trauma can cause changes in the physiologic and psychological responses in humans. The CDC guidelines have stated criterion for immediate transportation of the person to the trauma centre in which one of the criteria is that if a person has the respiratory rate of less than 10 and greater than 29 will be transported to the trauma centre immediately.

Thus, Option-B is the correct answer.

8 0
3 years ago
The multiple nuclei in skeletal muscle cells are the result of the
tensa zangetsu [6.8K]

Answer:

Fusion of embryonic myoblasts, each having its own nucleus to many other myoblasts to form the multinucleated skeletal muscle fibers.

Explanation:

The multiple nuclei in skeletal muscle cells are as a result of fusion of embryonic myoblasts, each having its own nucleus to many other myoblasts to form the multinucleated skeletal muscle fibers. This gives rise to multiple copies of genes, allowing production of the large amounts of proteins and enzymes and ATPs needed for muscle contraction.

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Secondary succession occurs after the initial succession has been disrupted and some plants and animals still exist. The disruption occurs afer an event like a forrest fire or hurricane destroys the forest.

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