Q: Answer the following question given this paragraph: You can see a model of the cell membrane in Figure below . The molecules that make up the cell membrane are mainly phospholipids. There are two layers of phospholipids. They are arranged so the lipid tails are on the inside of the membrane. They make the interior of the membrane hydrophobic, or "water fearing". The lipid heads point toward the outside of the membrane. The make the outer surfaces of the membrane hydrophilic, or "water loving". Different types of proteins are embedded in the lipid layers. The proteins are needed to help transport many substances across the membrane. Q: What is the main makeup of the cell membrane? A:

OPTIONS:
- glucose
- antibodies
- filaments
- phospholipids

A: phospholipids

Q: Answer the following question given this paragraph: This image depicts a true wonder of nature. This tiny human sperm is penetrating a much larger egg. These two cells will unite to become a brand new human being. The process in which they unite is called fertilization. Q: The process in which a sperm unites with an egg is called? A:

OPTIONS:
- absorption
- infection
- migration
- fertilization

A: fertilization

Q: Answer the following question given this paragraph: solid waste that remains after food is digested and is eliminated from the body through the anus. Q: What type of waste is eliminated from the body through the anus? A:

OPTIONS:
- urine
- carbon dioxide
- liquid
- solid

A: solid

Q: Answer the following question given this paragraph: Aquatic biomes are determined mainly by depth of water and distance from shore. They include freshwater and marine biomes. Q: Aquatic biomes are determined mainly by distance from shore and what other factor? A:

OPTIONS:
- water temperature
- salinity
- species populations
- depth of water

A:
depth of water