Civil engineers work with structural geologists to: (A) dig oil wells
(B) examine rocks and fossils
(C) plan bridges, tunnels, and dams
(D) locate "lost" silver veins in the crust

Can a trait be both polygenic and have multiple alleles? explain why or why not.

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.

Label the following as inner or outer planets; a) has 67 moons made mostly of hydrogen and helium b) has rings c)no moons, high volcanic activity d) known as the red planet, has 2 moons e) very thin atmosphere, moons or rings