The Oxygen Consumption of a Bird Embryo Increases from the Time

question 43

Multiple Choice

The oxygen consumption of a bird embryo increases from the time the egg is laid through the time the chick hatches. In a typical galliform bird, the oxygen consumption, in milliliters per hour, can be approximated by
$c ( t ) = - 0.00272 t ^ { 3 } + 0.138 t ^ { 2 } - 0.8923 t + 0.1499 ( 6 \leq t \leq 30 )$ where t is time (in days) since the egg was laid. (An egg will typically hatch at around $t = 28$ .) Find the total amount of oxygen consumed during the ninth and tenth days ( $t = 8$ to $t = 10$ ) . Round your answer to the nearest whole number.

• A)64
• B) 18
• C) 50
• D) 1,138
• E) 467

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