Problem:OPTIONS:
- filtration
- extraction
- precipitation
- diffusion

Answer the following question given this paragraph: Diffusion is the movement of a substance from an area of a higher amount toward an area of lower amount. A concentration gradient initially exists across the cell membrane. Equilibrium is reached when there is an equal amount of the substance on both sides of the membrane. Q: What do you call the movement of a substance from an area of a higher amount toward an area of lower amount? A:
****
A: diffusion

Answer the following question given this paragraph: Living species of chordates are classified into three major subphyla: Vertebrata, Urochordata, and Cephalochordata. Vertebrates are all chordates that have a backbone. The other two subphyla are invertebrate chordates that lack a backbone. Q: Living species of chordates are classified into three major subphyla: vertebrata, urochordata, and what? A:
OPTIONS:
- spirogyra
- invertebrates
- xerophyte
- cephalochordata
cephalochordata

Answer the following question given this paragraph: Thick fur and a layer of blubber keep polar bears warm in their Arctic ecosystem. Why do you think their fur is white? Why might it be an adaptation in an Arctic biome?. Q: What 2 things keep polar bears warm in their arctic ecosystem? A:
OPTIONS:
- hibernation, thick fur
- colourful fur , blubber
- camouflage, blubber
- thick fur, blubber

Answer: thick fur, blubber

Question: Answer the following question given this paragraph: Behind the nasal cavity, air passes through the pharynx , a long tube. Both food and air pass through the pharynx. Q: Name the organ located behind the nasal cavity in which both food and air pass through? A:
OPTIONS:
- medulla
- sinus
- diaphragm
- pharynx
Answer: pharynx

input with options: Answer the following question given this paragraph: The process in which an atom becomes an ion is called ionization. It may occur when atoms are exposed to high levels of radiation or when atoms transfer electrons to or from other atoms. Q: What process can occur when atoms are exposed to high levels of radiation or when atoms transfer electrons to or from other atoms? A:
OPTIONS:
- fusion
- diffusion
- oxidation
- ionization
output: ionization

Problem: OPTIONS:
- fatty junctions
- solid junctions
- special junctions
- tight junctions
Q: Answer the following question given this paragraph: In addition to holding cells together, tight junctions play a role in the transport of materials. Tight junctions prevent the passage of molecules and ions through the space between cells. So these molecules and ions must actually enter cells (either by diffusion or active transport) in order to proceed through a tissue. This allows tight junctions to indirectly play a role over what substances are allowed into a specific cell. Tight junctions play this role in maintaining the blood-brain barrier. Q: What can prevent the passage of molecules and ions between cells, such as in the blood-brain barrier? A:
Answer:
tight junctions