Depends on how you look at it. Technically they can. They can be put onto a bi pass machine which is basically pumps the blood around your body for you. However this is not a permanent solution. The heart is a vital organ and without it our body and our organs do not get the blood they need to survive.
yes. no.
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Yes humans can live with out heads if they are an zombie.
A person can't live without a heart (the organ), but a person does not need empathy or love to live.
grass we can always live without grass
no
no
Yes.
yes
No, humans cannot live without establishing a harmonious connection with the ecosystems in the oceans.
actually, it's possible to live without a heart, but you must have it replaced by another thing that circulates your blood.
well you can't live without a heart beat. so it means i can't live without you!