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Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings
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Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems
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What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled
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If a human has 23 pairs of chromosomes in every muscle cell of its body how many chromosomes will be in a human egg or sperm
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Fill the container to the top with the particles. Place your hand tightly over the top of the contai...
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