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lana66690 [7]
3 years ago
5

Which is an organ? heart circulatory system blood muscle tissue

Biology
2 answers:
DochEvi [55]3 years ago
8 0

Answer:

Heart

Explanation:

spin [16.1K]3 years ago
4 0

Answer:

heart !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

Explanation:

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Globular clusters is a type of star system where the stars are tightly bounded by gravity.

<h3>What is a star system?</h3>

A star system can be defined as small number of stars that orbit around each other and are bound by gravitational force of attraction.

It is also called a stellar system.

Globular clusters is a type of star system with the following features;

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