Answer the following question given this paragraph: The last major ice age took place in the Pleistocene. This epoch lasted from 2 million to 14,000 years ago. Earth's temperature was only 5 C (9 F) cooler than it is today. But glaciers covered much of the Northern Hemisphere. In Figure below , you can see how far south they went. Clearly, a small change in temperature can have a big impact on the planet. Humans lived during this ice age. Q: The last major ice age took place in which era? Choices: - miocene - pliocene - cenozoic - pleistocene A:
pleistocene
Answer the following question given this paragraph: When a sperm penetrates the egg, it triggers the egg to complete meiosis. The sperm also undergoes changes. Its tail falls off, and its nucleus fuses with the nucleus of the egg. The resulting cell, called a zygote , contains all the chromosomes needed for a new human organism. Half the chromosomes come from the egg and half from the sperm. Q: What is the name of the cell that results when a sperm nucleus fuses with a egg nucleus? Choices: - t cell - a cytoplasm - a filament - a zygote A:
a zygote
Q: Answer the following question given this paragraph: Soil type also influences the type of vegetation that can grow in the region. We can identify climate types by the types of plants that grow there. Q: Along with climate, this also influences the type of vegetation that can grow in the region? Choices: - gravity - fertilizer use - population density - soil type A:
A: soil type
Question: Answer the following question given this paragraph: Q: Fission is a method of what type of reproduction exhibited by some planarians? Choices: - spawning - sexual - propagation - asexual A:
Answer: asexual
*Question*
Answer the following question given this paragraph: In the last lesson, we studied the characteristics of liquids and solids at a macroscopic level and at the molecular level. Increasing the temperature of a solid transforms the particles from a rigid arrangement to a fluid (a liquid or gas). Conversely, decreasing the temperature of a liquid or gas slows the particles down, going back from free movement to a fixed arrangement. In this section, we will further explore how temperature and pressure affect the characteristics and behavior of matter. Pressure has a larger effect on gases, which are very compressible, than liquids and solids. However, changes in pressure are still relevant to solids and liquids. For example, Figure above shows ice skates on ice. Because your entire weight is all concentrated on a thin blade, ice skates exert quite a bit of pressure on the ice below them. An interesting property of water is that increasing the pressure on its solid form (ice) will eventually convert it to liquid water. The pressure exerted by ice skates makes small amounts of liquid water on the surface, allowing the skates to glide smoothly. Q: What needs to be increased to change a solid into a liquid or gas? Choices: - volume - oxygen - pressure - temperature A:
**Answer**
temperature
Q: Answer the following question given this paragraph: Galvanic cells have positive cell potentials, and all the reduction reactions are reversible. The reaction at the anode will be the half-reaction with the smaller or more negative standard reduction potential. Reversing the reaction at the anode (to show the oxidation) but not its standard reduction potential gives: Anode (oxidation):. Q: What kind of cells have positive cell potentials, and all the reduction reactions are reversible? Choices: - new cells - inhibited cells - neutral cells - galvanic cells A:
A: galvanic cells