1. a fish that has a flexible skeleton made of cartilage is known as a . 2. a row of organs that are sensitive to changes in water pressure is called a . 3. a fish that has muscular pectoral and pelvic fins supported by rod-shaped bones is known as a . 4. movement of the allows some fish to breathe without swimming. 5. a fish that has a bony skeleton and thin, flexible supports in its fins is known as a . 6. the gas-filled sac found in many fishes is called a .
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What are some possible short and long term medical concerns for crew members on longer space exploration trips
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Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.
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1. a fish that has a flexible skeleton made of cartilage is known as a . 2. a row of organs that are...
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