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vichka [17]
3 years ago
15

The _____ is thin and smooth and is the innermost layer of the heart.

Biology
2 answers:
77julia77 [94]3 years ago
5 0
It is the endocardium I believe.
Len [333]3 years ago
4 0

The correct answer is endocardium.


The endocardium is termed as thin and smooth and is the innermost layer of the heart. Endocardium tissues are biologically and embryologically similar to endothelial cells which lines blood vessels.


It provides protection to valves and heart chambers. It is the muscular tissue which is responsible for contraction of the heart.


It also controls myocardial function. It acts as kind of blood-heart barrier and controls ionic composition of extracellular fluid where cardiomyocytes bathe.

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Nostrana [21]

The correct answer is Option (B) Habituation.

Crocodiles ignore the birds which clean their teeth instead of eating them. This is an example of habituation.

<h3>Why do crocodiles show habituation toward the birds which clean their teeth?</h3>

It's an evolutionary phenomenon that when a bird used to sit in a crocodile’s mouth, the crocodile didn't eat it, instead, the crocodile used to allow the bird to sit in the mouth and clean the teeth of the crocodile so that they can alive longer, whereas the birds could get the free food from the crocodile’s mouth. It is an example of the symbiotic relationship between the two.

So, the same is the case today, crocodiles are habituated to the fact that the birds will clean their teeth so instead of eating them, these birds are being ignored by the crocodiles.

To know more about crocodiles visit:

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1 year ago
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kondor19780726 [428]

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All of the above.

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The solute is powdered drink mix

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