Entral Building Block: Mastery Test

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A molecule of alkene has the chemical formula C3H4. How many carbon-carbon double bonds are present in the molecule?

Oral rehydration therapy is preferred over intravenous therapy for fluid replacement caused by diarrhea because it

An organism that carries on photosynthesis in each cell is called

Which of the following statements describes an example of natural selection?

Which of the following is NOT stored in the bone? Bone Inside A. calcium B. fat C. minerals D. water

Which one of the following represents quantitative data? a) whether an endangered California condor successfully raises a condor chick b) offspring gender c) whether you play a college sport d) levels of nitrate pollution in local waterways

How do natural actions such as weathering, erosion, and soil formation affect Earth's surface?

In which species of animal does sebum eventually become lanolin?

What are some examples and non examples of chemical bonding?

Match the staining techniques with their purpose. A Negative stain such as India ink or Congo red. B The Gram stain C The Ziehl-Neelsen Acid-fast stain D Simple stain with a basic dye E The Schaeffer-Fulton Endospore stain Stain microbes a bright

Sandy puts a paper clip on the table and puts a magnet near the paper clip. The paper clip begins to move. What type of forces are acting on the paper clip?