Problem:OPTIONS:
- reptiles
- amphibians
- insects
- mammals

Answer the following question given this paragraph: The supertree also shows that another major diversification of mammals occurred about 50 million years ago. Again, worldwide climate change may have been one reason. This time Earth's temperature rose. The warmer temperature led to a greater diversity of plants. This would have meant more food for mammals or their prey. Q: A major diversification of what animal group occurred about 50 million years ago, possibly spurred by worldwide climate change? A:
****
A: mammals

Answer the following question given this paragraph: A gene pool is the complete set of unique alleles in a species or population. Mutations create variation in the gene pool. Populations with a large gene pool are said to be genetically diverse and very robust. They are able to survive intense times of natural selection against certain phenotypes. During these times of selection, individuals with less favorable phenotypes resulting from deleterious alleles (due to mutations) may be selected against and removed from the population. Concurrently, the more favorable mutations that cause beneficial or advantageous phenotypes tend to accumulate in that population, resulting, over time, in evolution. In fact, without any change in the gene pool, without any new alleles added due to new mutations, evolution could not occur. Genetic change is the driving force of evolution. In fact, evolution can be genetically defined as the change allele frequencies over time. Q: What increases the size of a population's gene pool? A:
OPTIONS:
- mass extinction
- microbes
- natural selection
- mutations
mutations

Answer the following question given this paragraph: Q: Many organisms look very similar to other organisms because they may be from the same what? A:
OPTIONS:
- nutrients
- area
- parasites
- species

Answer: species

Question: Answer the following question given this paragraph: Fluoride ion is widely used in water supplies to help prevent tooth decay. Chloride is an important component in ion balance in blood. Iodide ion is needed by the thyroid gland to make the hormone thyroxine. Q: Fluoride ion is widely used in water supplies to help prevent what? A:
OPTIONS:
- rust
- bacteria
- chlorine taste
- tooth decay
Answer: tooth decay

input with options: Answer the following question given this paragraph: The mechanical advantage of a simple machine such as a pulley is the factor by which the machine changes the force applied to it. The ideal mechanical advantage of a machine is its mechanical advantage in the absence of friction. All machines must overcome friction, so the ideal mechanical advantage is always somewhat greater than the actual mechanical advantage of the machine as it is used in the real world. Q: What is something that all machines must overcome? A:
OPTIONS:
- stress
- work
- temperature
- friction
output: friction

Problem: OPTIONS:
- sound transmission
- GPS
- radar
- sonar
Q: Answer the following question given this paragraph: Sonar stands for sound navigation and ranging. It is used to locate underwater objects such as submarines. Q: Sound navigation and ranging is an acronym for what, which is used to locate underwater objects such as submarines? A:
Answer:
sonar