Answer the following question given this paragraph: Like bacteria, archaea can have flagella to assist with movement. Q: Like bacteria, archaea can have what to assist with movement? Choices: - cilia - antennae - sporangia - flagella A:
flagella
Answer the following question given this paragraph: Polar molecules result from differences in electronegativity of the atoms in the molecule. Q: Polar molecules result from differences in electronegativity of what in the molecule? Choices: - ions - protons - iron - atoms A:
atoms
Q: Answer the following question given this paragraph: Predators play an important role in an ecosystem. For example, if they did not exist, then a single species could become dominant over others. Grazers on a grassland keep grass from growing out of control. Predators can be keystone species . These are species that can have a large effect on the balance of organisms in an ecosystem. For example, if all of the wolves are removed from a population, then the population of deer or rabbits may increase. If there are too many deer, then they may decrease the amount of plants or grasses in the ecosystem. Decreased levels of producers may then have a detrimental effect on the whole ecosystem. In this example, the wolves would be a keystone species. Q: What type of species have a large effect on the balance of organisms in an ecosystem? Choices: - decomposers - producers - secondary consumers - keystone A:
A: keystone
Question: Answer the following question given this paragraph: Cells come in many different shapes. Cells with different functions often have different shapes. Q: Cells with different functions often differ in what physical property? Choices: - density - size - weight - shape A:
Answer: shape
*Question*
Answer the following question given this paragraph: Geologists say that the Grand Canyon ( Figure above ) has "layer cake geology. " This is because the rock strata are in layers. They are extremely easy to see. Sedimentary rocks are like a book that tells the story of the environment in which they formed. Rock units can be traced across large expanses. Looking down into the Grand Canyon, you get a sense of the vastness of space and of time. Q: What is stacked in layers in "layer cake geology"? Choices: - sediment - soil - horizontal stata - rock stata A:
**Answer**
rock stata
(Q).
Answer the following question given this paragraph: There are very few living species of monotremes, or egg-laying mammals. They include the echidna and platypus, both pictured in Figure below . Monotremes are found only in Australia and the nearby island of New Guinea. Q: What's another term for egg-laying mammals? Choices: - viviparus - amphibians - herbivores - monotremes A:
(A).
monotremes