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What are some possible short and long term medical concerns for crew members on longer space exploration trips

What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.