input with options: Answer the following question given this paragraph: 11.2 Mechanisms of Evolution There are four factors that can change the allele frequencies of a population. Natural selection works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities. Mutations introduce new alleles into a population. Genetic drift stems from the chance occurrence that some individuals have more offspring than others and results in changes in allele frequencies that are random in direction. When individuals leave or join the population, allele frequencies can change as a result of gene flow. Q: Out of the four ways that allele frequencies of a population can be changed, which way is caused by individuals leaving or joining the population? A:
OPTIONS:
- Allopatric speciation
- spontaneous mutation
- mass extinction
- gene flow
output: gene flow

Q: Answer the following question given this paragraph: The enormous number of species is due to the tremendous variety of environments in which they can live. Q: The enormous number of species is due to the tremendous variety of what? A:

OPTIONS:
- tissues
- sounds
- measurements
- environments

A: environments

input: OPTIONS:
- metabolytes
- chlorophyll
- hydrogen
- energy Now, answer this question: Answer the following question given this paragraph: After citric acid forms, it goes through a series of reactions that release energy. The energy is captured in molecules of NADH, ATP, and FADH 2 , another energy-carrying compound. Carbon dioxide is also released as a waste product of these reactions. Q: After citric acid forms, it goes through a series of reactions that release what, which is then captured in special molecules? A:
A:
output: energy

Answer the following question given this paragraph: One trait invertebrates like the sponge and tarantula share is lack of a backbone. In fact, they don't have any bones at all. These are defining traits of all invertebrates. Some invertebrates have a skeleton, but it isn't made of bone. Many other traits of invertebrates show considerable diversity. Q: What traits do the sponge and tarantula share? A:

OPTIONS:
- number of eyes
- number of legs
- lifespan
- lack of backbone

Answer: lack of backbone

Problem: OPTIONS:
- 74
- 9
- 36
- 18
Q: Answer the following question given this paragraph: The atomic number of tungsten is 74. Therefore, in a neutral atom of tungsten, there are 74 electrons. The atomic number of argon is 18. Therefore, in a neutral atom of argon, there are 18 electrons. Q: The atomic number of tungsten is 74. therefore, in a neutral atom of tungsten, there are 74 electrons. the atomic number of argon is 18. therefore, in a neutral atom of argon, there are how many electrons? A:
Answer: 18

Answer the following question given this paragraph: Careful farming helps to keep up soil quality each season. One way is to plant different crops each year. Another is to alternate the crops planted in each row of the field. These techniques preserve and replenish soil nutrients. Planting nutrient rich cover crops helps the soil. Planting trees as windbreaks, plowing along contours of a field, or building terraces into steeper slopes all help to hold soil in place ( Figure below ). No-till or low-till farming disturbs the ground as little as possible during planting. Q: What is the purpose of utilizing careful farming practices such as rotating crops or planting nutrient rich crops? A:

OPTIONS:
- improve sediment quality
- improve photosynthesis quality
- improve soil texture
- improve soil quality

Answer:
improve soil quality