Answer the following question given this paragraph: The rock of the mantle is mostly peridotite. Peridotite is formed of crystals of olivine (green) and pyroxene (black). Q: The rock of the mantle is mostly what? Choices: - metamorphic - crystalline - silicon - peridotite A:
peridotite
Answer the following question given this paragraph: Diffusion will continue until the concentration gradient has been eliminated. Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes "down the concentration gradient. " The end result of diffusion is an equal concentration, or equilibrium , of molecules on both sides of the membrane. At equilibrium, movement of molecules does not stop. At equilibrium, there is equal movement of materials in both directions. Q: The end result of diffusion is an equal concentration, or equilibrium , of molecules on both sides of what? Choices: - the cell - the organism - the organelle - the membrane A:
the membrane
Q: Answer the following question given this paragraph: Evolution occurs by natural selection, the process by which organisms with traits that better enable them to adapt to their environment will tend to survive and reproduce in greater numbers. Evolution is due to differences in the survival and reproduction of individuals within a population. Q: What is the process that allows organisms with better traits to survive and produce? Choices: - spontaneous mutation - adaptation - succession - natural selection A:
A: natural selection
Question: Answer the following question given this paragraph: Organisms that have a diploid life cycle spend the majority of their lives as diploid adults. All diploid adults inherit half of their DNA from each parent. When they are ready to reproduce, diploid reproductive cells undergo meiosis and produce haploid gametes. These gametes then fuse through fertilization and produce a diploid zygote, which immediately enters G 1 of the cell cycle. Next, the zygote's DNA is replicated. Finally, the processes of mitosis and cytokinesis produce two genetically identical diploid cells. Through repeated rounds of growth and division, this organism becomes a diploid adult and the cycle continues. This is the life cycle of humans. Q: What is the series of changes in the life of an organism? Choices: - insect metamorphosis - evolution - circle of life - life cycle A:
Answer: life cycle
*Question*
Answer the following question given this paragraph: Any useful hypothesis will allow predictions based on reasoning. Reasoning can be broken down into two categories: deduction and induction. Most reasoning in science is formed through induction. Q: Reasoning can be broken down into two categories: deduction and? Choices: - conduction - preduction - invention - induction A:
**Answer**
induction
(Q).
Answer the following question given this paragraph: Q: What term is used to describe the conditions in the sky on any particular day? Choices: - forecast - humidity - temperature - weather A:
(A).
weather