input with options: Answer the following question given this paragraph: The only difference between each nucleotide is the identity of the base. There are only four possible bases that make up each DNA nucleotide: adenine (A), guanine (G), thymine (T), and cytosine (C). Q: There are only four possible bases that make up each dna nucleotide: adenine, guanine, thymine, and? A:
OPTIONS:
- taurine
- phenylalanine
- guarine
- cytosine
output: cytosine

Q: Answer the following question given this paragraph: a small scrap of paper onto a droplet of water, the paper floats on top of the water droplet, although the object is denser (heavier) than the water. This occurs because of the surface tension that is created by the water molecules. Cohesion and surface tension keep the water molecules intact and the item floating on the top. It is even possible to "float" a steel needle on top of a glass of water if you place it gently, without breaking the surface tension (Figure 2.11). Q: What causes a small scrap of paper placed on top of the water droplet to float , although the object is denser (heavier) than the water? A:

OPTIONS:
- diffusion
- transfusion
- van der waals force
- surface tension

A: surface tension

input: OPTIONS:
- carbon
- short filaments
- short particles
- short microtubules Now, answer this question: Answer the following question given this paragraph: Centrioles are made of short microtubules and are very important in cell division. Q: What are centrioles made from? A:
A:
output: short microtubules

Answer the following question given this paragraph: Community Dynamics Community dynamics are the changes in community structure and composition over time, often following environmental disturbances such as volcanoes, earthquakes, storms, fires, and climate change. Communities with a relatively constant number of species are said to be at equilibrium. The equilibrium is dynamic with species identities and relationships changing over time, but maintaining relatively constant numbers. Following a disturbance, the community may or may not return to the equilibrium state. Succession describes the sequential appearance and disappearance of species in a community over time after a severe disturbance. In primary succession, newly exposed or newly formed rock is colonized by living organisms; in secondary succession, a part of an ecosystem is disturbed and remnants of the previous community remain. In both cases, there is a sequential change in species until a more or less permanent community develops. Primary Succession and Pioneer Species Primary succession occurs when new land is formed, for example, following the eruption of volcanoes, such as those on the Big Island of Hawaii. As lava flows into the ocean, new land is continually being formed. On the Big Island, approximately 32 acres of land is added to it its size each year. Weathering and other natural forces break down the rock enough for the. Q: What term describes the sequential appearance and disappearance of species in a community over time after a severe disturbance? A:

OPTIONS:
- supression
- generational replacement
- pattern
- succession

Answer: succession

Problem: OPTIONS:
- hurricane
- tidal wave
- eruption
- earthquake
Q: Answer the following question given this paragraph: A cross section of earthquake epicenters. The depth outlines the subducting plate. There are shallow, intermediate, and deep earthquakes. Q: Subducting plate and epicenter are terms related to what phenomenon? A:
Answer: earthquake

Answer the following question given this paragraph: Q: What are the vertical columns of similar chemical properties on the periodic table? A:

OPTIONS:
- Family
- zones
- Pods
- groups

Answer:
groups