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Practice Question

Which of the following describes why water has a concave, or downward-curving, meniscus when poured in a glass beaker?

Answer Choices:

Correct Answer:

The adhesive forces with the glass are greater than the cohesive forces.

Rationale:
Water sticks more to glass than to itself, causing a concave meniscus.
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This question is from Science - Test 6 which contains 50 questions.

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Carbon has an atomic number of 6. Which of the following is true about the isotope C-12?

Answer Choices:

A. C-12 possesses 7 neutrons and 5 electrons in its nucleus
B. C-12 possesses 7 protons and 5 neutrons in its nucleus.
C. C-12 possesses 6 protons and 6 electrons in its nucleus.
D. C-12 possesses 6 neutrons and 6 protons in its nucleus.
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Which of the following best describes adaptive immunity

Answer Choices:

A. The initiation of Internal defenses, such as phagocytes and natural killer cells
B. A response to specific traits of specific pathogens
C. The body's barrier defenses, such as mucous membranes and secretions
D. The initiation of inflammatory response
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The following diagram summarizes the carbonic acid-bicarbonate ion buffer system of the blood.CO2 + H2o   HC03- + HOWhich of the following equations shows the reaction that takes place when there are excessive protons (H*) in the blood?

Answer Choices:

A. H2CO3- + H+ ---> H2CO3
B. H2CO3 ---> HCO3- + H+
C. CO2 + H2O ---> H2CO3
D. H2CO3 ---> CO2 + H2O
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The following diagram summarizes the carbonic acid-bicarbonate ion buffer system of the blood.CO2 + H2o   HC03- + HO Which of the following equations shows the reaction that takes place when there are excessive protons (H*) in the blood?

Answer Choices:

A. H2CO3-+H+ H2CO3
B. H2CO3 HCO3- + H+
C. CO2 + H2O H2CO3
D. H2CO3 CO2 + H2O
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A student investigating the importance of wavelengths above and below the visible spectrum for photosynthesis sets up an experiment as follows over a 2-month period, all with illumination at 1-meter distance from plants grown with the same soil and watering conditions. 3 Arabidopsis plants exposed to ultraviolet light (UV)3 Arabidopsis plants exposed to infrared light (IR)3 Arabidopsis plants exposed to white light At the end of the experiment, she finds that the IR treated plants are scorched, the UV treated plants have wilted, but the white light-treated plants are growing normally. Which of the following statements is most likely to be correct?

Answer Choices:

A. Infrared light contains more energy than the other wavelengths.
B. The wavelength of light does not affect photosynthesis.
C. Three plants do not provide sufficient replications to draw a conclusion.
D. Wavelength of light is the only variable that has been changed between groups.
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Science - Test 6

50 Questions

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Question Details
  • Category: ATI TEAS
  • Subcategory: SCIENCE
  • Domain: SCIENCE - Section.
  • Answer Choices: 4
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