What is the function of the organ and the tissues which make up this organ?​

it's heart.

Explanation:

heart is made up of cardiac tissues. this organ along with tissues pump blood to the entire body. the tissues that make up this organ is specialized in involuntary contraction and relaxation with applies enough pressure to allow steady blood flow in and out of the heart.

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humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.