Problem:OPTIONS:
- prokaryotes
- algae
- arthropods
- protists

Answer the following question given this paragraph: Humans could not live on Earth if it were not for protists. Why? Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis. Other protists decompose and recycle nutrients that humans need to live. All protists make up a huge part of the food chain. Q: What produces almost one-half of the earth's oxygen through photosynthesis? A:
****
A: protists

Answer the following question given this paragraph: example, if you hold an ice cube in your hand, the ice cube slowly melts as energy in the form of heat is transferred from your hand to the ice. As your hand loses energy, it starts to feel cold. Because of their interrelationships, energy, work, and heat have the same units. The SI unit of energy, work, and heat is the joule (J). A joule is a tiny amount of energy. For example, it takes about 4 J to warm 1 mL of H2O by 1C. Many processes occur with energy changes in thousands of joules, so the kilojoule (kJ) is also common. Another unit of energy, used widely in the health professions and everyday life, is the calorie (cal). The calorie was initially defined as the amount of energy needed to warm 1 g of H2O by 1C, but in modern times, the calorie is related directly to the joule, as follows: 1 cal = 4.184 J We can use this relationship to convert quantities of energy, work, or heat from one unit to another. The calorie is used in nutrition to express the energy content of foods. However, because a calorie is a rather small quantity, nutritional energies are usually expressed in kilocalories (kcal), also called Calories (capitalized; Cal). For example, a candy bar may provide 120 Cal (nutritional calories) of energy, which is equal to 120,000 cal. Proteins and carbohydrates supply 4 kcal/g, while fat supplies 9 kcal/g. Q: Another unit of energy, used widely in the health professions and everyday life, is _______? A:
OPTIONS:
- carbs
- body index
- biomass ( cal )
- calorie ( cal )
calorie ( cal )

Answer the following question given this paragraph: Significant figures are all of the digits that can be known with certainty in a measurement plus an estimated last digit. Significant figures provide a system to keep track of the limits of the original measurement. To record a measurement, you must write down all the digits actually measured, including measurements of zero, and you must not write down any digit not measured. The only real difficulty with this system is that zeros are sometimes used as measured digits, while other times they are used to locate the decimal point. Q: What are all of the digits that can be known with certainty in a measurement plus an estimatied last digit called? A:
OPTIONS:
- determined figures
- important figures
- miniature figures
- significant figures

Answer: significant figures

Question: Answer the following question given this paragraph: Q: The transmission electron micrograph shows the cell walls where two cells do what? A:
OPTIONS:
- split apart
- reproduce
- disappear
- come together
Answer: come together

input with options: Answer the following question given this paragraph: Contact metamorphism occurs when hot magma transforms rock that it contacts. Q: What occurs when hot magma transforms rock that it contacts? A:
OPTIONS:
- existence metamorphism
- form metamorphism
- changing metamorphism
- contact metamorphism
output: contact metamorphism

Problem: OPTIONS:
- the lungs
- the heart
- the kidneys
- the brain stem
Q: Answer the following question given this paragraph: The regular, rhythmic contractions of the diaphragm are controlled by the brain stem. It sends nerve impulses to the diaphragm through the autonomic nervous system. The brain stem monitors the level of carbon dioxide in the blood. If the level becomes too high, it "tells" the diaphragm to contract more often. Breathing speeds up, and the excess carbon dioxide is released into the air. The opposite events occur when the level of carbon dioxide in the blood becomes too low. In this way, breathing keeps blood pH within a narrow range. Q: What monitors the level of carbon dioxide in the blood? A:
Answer:
the brain stem