Blood cells are in shape because they lack a nucleus.

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Blood cells are Concave in shape because they lack a nucleus.

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Asked 12/10/2015 11:07:45 AM

Updated 12/10/2015 11:38:38 AM

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Updated 12/10/2015 11:42:23 AM

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Neurons are not connected; they transmit signals across a space called a

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Updated 12/10/2015 11:43:27 AM

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Sponges have a _____ that squeezes out waste

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Updated 12/10/2015 11:48:45 AM

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Tissues arranged together make up _____, which, when functioning together in groups, make up _____. cells; tissues tissues; organs organs; systems systems; an organism

Weegy: Tissues arranged together make up organs, which, when functioning together in groups, make up systems. (More)

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Updated 12/10/2015 11:38:50 AM

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Tissues arranged together make up _____, which, when functioning together in groups, make up _____. cells; tissues tissues; organs organs; systems systems; an organism

Weegy: Tissues arranged together make up organs, which, when functioning together in groups, make up systems. (More)

Question|Asked by rabbecca7

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Updated 12/10/2015 12:04:54 PM

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