input with options: Answer the following question given this paragraph: To understand minerals, we must first understand matter. Matter is the substance that physical objects are made of. Q: What substance are physical objects are made of? A:
OPTIONS:
- gravity
- energy
- friction
- matter
output: matter

Q: Answer the following question given this paragraph: Q: What is the name of the hollow nerve cord along the back of chordates? A:

OPTIONS:
- zetacord
- mesoderm
- phloem
- notochord

A: notochord

input: OPTIONS:
- chamber
- ventricle
- the epidermis
- the atria Now, answer this question: Answer the following question given this paragraph: The atria receive blood and the ventricles pump blood out of the heart. Q: What receives blood in the heart? A:
A:
output: the atria

Answer the following question given this paragraph: The amount of reactants and products do not have to be equal. However, after equilibrium is attained, the amounts of reactants and products will be constant. Q: In a chemical reaction, the amounts of reactants and products will be constant when what state is attained? A:

OPTIONS:
- saturation
- peak
- homogeneity
- equilibrium

Answer: equilibrium

Problem: OPTIONS:
- tissue
- collagen
- dendrites
- cilia
Q: Answer the following question given this paragraph: Mucous membranes provide a mechanical barrier at body openings. They also line the respiratory, GI, urinary, and reproductive tracts. Mucous membranes secrete mucus , a slimy substance that traps pathogens. The membranes also have hair-like cilia. The cilia sweep mucus and pathogens toward body openings where they can be removed from the body. When you sneeze or cough, pathogens are removed from the nose and throat (see Figure below ). Tears wash pathogens from the eyes, and urine flushes pathogens out of the urinary tract. You can watch the sweeping action of cilia at the following link: http://mcdb. colorado. edu/courses/2115/units/Other/mucus%20animation. swf . Q: The tiny hair present on mucus membranes is known as? A:
Answer: cilia

Answer the following question given this paragraph: The age-sex structure of a population is the number of individuals of each sex and age in the population. Age-sex structure influences population growth. It is represented by a population pyramid. The number of survivors at each age is plotted on a survivorship curve. Q: What helps represent age-sex structure of the population? A:

OPTIONS:
- habitat chart
- density graph
- biome model
- population pyramid

Answer:
population pyramid