Q: Answer the following question given this paragraph: This model for metallic bonding explains some of the physical properties of metals. Metals conduct electricity and heat very well because of their free-flowing electrons. As electrons enter one end of a piece of metal, an equal number of electrons flow outward from the other end, allowing an electrical current to pass through the material with minimal resistance. Additionally, because the electron "glue" that holds the metal atoms together is very easy to deform and reshape, bulk metals can be easily hammered, bent, and pulled without breaking apart. Q: Free-flowing electrons enable what materials to conduct electricity and heat very well? A:

OPTIONS:
- noble gases
- alloys
- acids
- metals

A: metals

Q: Answer the following question given this paragraph: Q: Furthermore, most of the proteins within membranes have both hydrophobic and which other regions? A:

OPTIONS:
- atmospheric
- lymphatic
- cytosolic
- hydrophilic

A: hydrophilic

Q: Answer the following question given this paragraph: Gypsum, with its rose-like structure, is a chemical sedimentary rock. Q: What kind of rock is gypsum? A:

OPTIONS:
- basalt
- igneous
- metamorphic
- sedimentary

A: sedimentary

Q: Answer the following question given this paragraph: 34.3 Vertebrates are craniates that have a backbone. Q: What type of craniates have backbones? A:

OPTIONS:
- juveniles
- invertebrates
- larva
- vertebrates

A:
vertebrates