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finlep [7]
4 years ago
5

The beating of your heart is caused by _____.

Biology
2 answers:
Evgen [1.6K]4 years ago
4 0

Answer:

sinoatrial node

Explanation:

I'm pretty sure

GrogVix [38]4 years ago
3 0

Answer:

impulses

Explanation:

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Inability of dense irregular connective tissue to form properly will affect the formation of organs and the skin.

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Connective tissue is made up of cells, elastic fibers, and collagen.

The dense irregular connective tissues are distributed throughout the body are important in the formation of the skin, the eyes and walls of organs.

Inability of dense irregular connective tissue to form properly will affect the formation of organs and the skin.

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The phylum Hemichordata is the one that could form an evolutionary connection between the chordates and non-chordates.

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To the phylum Hemichordata belongs a genus that scientists believe could explain how the chordates could evolve from the non-chordates. This genus is Balanoglossus, of the class Enteropneusta.

Balanoglossus is similar to a worm, whose habitat is the seabed, and like other hemicordates it has a stomach, a structure that forms part of its digestive system and fulfills the functions of a spine.

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