Which animal product is least efficient at converting feed consumed into the final product?
a. milk
b. eggs
c. pork
d. beef
e. chicken
Answer: d. beef
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The boundaries of a voting district are drawn in order to give a group of voters an unfair advantage. This is ________
What will be an ideal response?
The ________ is a layer of liquid nickel and iron believed to be responsible for generating the Earth's magnetic field
A) Crust B) Mantle C) Outer Core D) Inner Core
During the Pleistocene, a continental ice sheet extended from mainland Europe to ________
Fill in the blank(s) with the appropriate word(s).
Planting rows of trees or shrubs around the periphery of a plowed field are long established farming practices that
A) serve as water reserves in times of drought. B) attract insect pests away from the crops. C) increase wind erosion and decrease soil moisture. D) decrease wind erosion and increase soil moisture.