Biology, 28.06.2019 12:20 jahmanilittlejotz1pe
Why is halley's comet named after sir edmund halley? a. he was the first person to discover it. b. he calculated its orbit period correctly and estimated the time of its reappearance. c. he was dedicated to the field of astronomy. d. he was very famous at that time. e. he was the first to discover historical records of its observation.
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Biology, 22.06.2019 06:00
Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.
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Biology, 22.06.2019 09:00
The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer
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Why is halley's comet named after sir edmund halley? a. he was the first person to discover it. b....
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