Question: Answer the following question given this paragraph:   Molecules in the cell membrane allow it to be semipermeable. The membrane is made of a double layer of phospholipids (a "bilayer") and proteins ( Figure below ). Recall that phospholipids, being lipids, do not mix with water. It is this quality that allows them to form the outside barrier of the cell.   Q: Phospholipids are unable to mix with what?   A:
OPTIONS:
- nitrogen
- solids
- air
- water
Answer: water

input with options: Answer the following question given this paragraph:      Q: What is the production of offspring without gamete fusion called?   A:
OPTIONS:
- ideal reproduction
- sexual reproduction
- organic reproduction
- asexual reproduction
output: asexual reproduction

Q: Answer the following question given this paragraph:   Birds are four-limbed, endothermic vertebrates with wings and feathers. They produce amniotic eggs and are the most numerous class of vertebrates.   Q: How many limbs to birds have?   A:

OPTIONS:
- five
- six
- ten
- four

A: four

input: OPTIONS:
- system
- ecosystem
- biosphere
- population Now, answer this question: Answer the following question given this paragraph:   Communities are made up of populations of different species. In biology, a population is a group of organisms of the same species that live in the same area. The population is the unit of natural selection and evolution. How large a population is and how fast it is growing are often used as measures of its health.   Q: What do you call a group of organisms of the same species that live in the same area?   A:
A:
output: population

Answer the following question given this paragraph:   Currents are like rivers flowing through the ocean. Rivers always flow downhill because of gravity. What do you think causes ocean currents to flow?.   Q: What causes rivers to always flow downhill?   A:

OPTIONS:
- slope
- pressure
- diffusion
- gravity

Answer: gravity

Q: Answer the following question given this paragraph:   Flatworms reflect several major evolutionary advances in invertebrates. They have three embryonic cell layers, including mesoderm. The mesoderm layer allows them to develop organ systems. For example, they have muscular and excretory systems. The muscular system allows them to move from place to place over solid surfaces. The excretory system lets them maintain a proper balance of water and salts. Flatworms also show cephalization and bilateral symmetry.   Q: What system lets flatworms maintain a proper balance of water and salts?   A:

OPTIONS:
- homeostasis
- nervous
- digestive
- excretory

A:
excretory