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Valentin [98]
4 years ago
12

Cleavage is chick is called discoidal type,why?

Biology
1 answer:
Svetach [21]4 years ago
3 0

Answer; Explanation:

In chicks, the pattern of cleavage is oftentimes referred to as the discoidal because it is entirely associated with the circular disc found in the blastodisc- the cytoplasm. So  when during cleavage process, the cells that arise are known as blastomeres which then collectively form the blastoderm.

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The layer that is responsible for the motility that propels food and residue through the digestive tract is called the ________.
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The correct answer is muscularis externa.

The muscularis externa refers to a section of muscle in various organs in the vertebrate body, adjacent to the submucosa. It is accountable for the gut movement known as peristalsis.

In comparison to the majority of the remainder of the digestive tract, the muscularis externa of the upper section of the esophagus comprises of striated muscle. It is accountable for peristaltic movement and segmental contractions in the GI tract.

These muscles make the movement of food and churn in combination with the digestive enzymes down the GI tract. The muscularis externa comprises of a longitudinal outer muscular layer and an inner circular layer.


8 0
3 years ago
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Which structural component is found in DNA but not in RNA?
MrMuchimi

Answer:

B. Deoxyribose

Explanation:

RNA is very similar to DNA, but differs in a few important structural details: RNA is single stranded, while DNA is double stranded. Also, RNA nucleotides contain ribose sugars while DNA contains deoxyribose and RNA uses predominantly uracil instead of thymine present in DNA.

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3 0
3 years ago
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Daytime hatching of turtles can be dangerous. Which of the following is a danger they do NOT face?
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it is really true

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8 0
3 years ago
What are the three elements of an editorial?
Vika [28.1K]

Answer:  the introduction, the body, and the conclusion

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An editorial piece is meant to show the opinion of the newspaper on a certain issue. It is usually written by the senior editor or the publisher and is the first article on the written piece.

Editorials follow a common writing structure that begins with an introduction where the issue is introduced. Discussions are then made in the body and the conclusion will then round up the piece.

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