Problem: OPTIONS:
- enlarged mitochondria
- presence of cytoplasm
- absence of cytoplasm
- presence of a nucleus
Q: Answer the following question given this paragraph: The answer depends on if the cell is prokaryotic or eukaryotic. The main difference between the two types of cells is the presence of a nucleus. In eukaryotic cells, DNA lives in the nucleus. Q: What is the main difference between prokaryotic and eukaryotic cells? A:
Answer: presence of a nucleus

Problem:OPTIONS:
- parasitism
- intraspecific competition
- mutualism
- interspecific competition

Answer the following question given this paragraph: Competition between different species is called interspecific competition. It might lead to the less well-adapted species going extinct. Or it might lead to one or both species evolving specialized adaptations. For example, competing species might evolve adaptations that allow them to use different food sources. You can see an example in Figure below . Q: A potential cause of extinction, competition between different species is called what? A:
****
A: interspecific competition

Answer the following question given this paragraph: Water power does not burn a fuel. So it causes less pollution than many other kinds of energy. Water power is also a renewable resource. Water keeps flowing downhill. Although we use some of the energy from this movement, we are not using up the water. Q: What type of resource is water power? A:
OPTIONS:
- biological
- nonrenewable
- geothermal
- renewable
renewable

Answer the following question given this paragraph: Algae play significant roles as producers in aquatic ecosystems. Microscopic forms live suspended in the water column. They are the main component of phytoplankton. As such, they contribute to the food base of most marine ecosystems. Q: What is the main component of phytoplankton? A:
OPTIONS:
- amoebas
- seawater
- cells
- algae

Answer: algae

Question: Answer the following question given this paragraph: When you pour a glass of water, or fill a car with gasoline, you observe that water and gasoline flow freely. But when you pour syrup on pancakes or add oil to a car engine, you note that syrup and motor oil do not flow as readily. The viscosity of a liquid is a measure of its resistance to flow. Water, gasoline, and other liquids that flow freely have a low viscosity. Honey, syrup, motor oil, and other liquids that do not flow freely, like those shown in Figure 10.15, have higher viscosities. We can measure viscosity by measuring the rate at which a metal ball falls through a liquid (the ball falls more slowly through a more viscous liquid) or by measuring the rate at which a liquid flows through a narrow tube (more viscous liquids flow more slowly). Q: The viscosity of a liquid is a measure of what? A:
OPTIONS:
- resistance to change form
- ability to absorb flow
- adaptability to surroundings
- resistance to flow
Answer: resistance to flow

input: OPTIONS:
- organic selection
- natural change
- spontaneous variation
- natural selection Now, answer this question: Answer the following question given this paragraph: Evolution is a change in the characteristics of living things over time. As described by Darwin, evolution occurs by a process called natural selection . In natural selection, some members of a species, being better adapted or suited to their environment, produce more offspring than others, so they pass "advantageous traits" to their offspring. Over many generations, this can lead to major changes in the characteristics of the species. Evolution explains how living things are changing today and how modern living things have descended from ancient life forms that no longer exist on Earth. As living things evolve, they generally become better suited for their environment. This is because they evolve adaptations. An adaptation is a trait that helps an organism survive and reproduce in a given environment. Q: Evolution occurs by what process whereby better-adapted members pass along their traits, according to darwin? A:
A:
output:
natural selection