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  • Question
  • The upper chambers of the heart are the


  • Options
  • A. Ventricles
  • B. Atria
  • C. Both A & B
  • D. None of the above

  • Correct Answer
  • Atria 

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    Biology problems


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    • 1. Which phrase best describes rough ER?

    • Options
    • A. studded with ribosomes
    • B. fewer solutes than the cell
    • C. stored in the central vacuole
    • D. protected by vesicles
    • Discuss
    • 2. Every ecosystem must have

    • Options
    • A. Autotrophs
    • B. Heterotrophs
    • C. Both A & B
    • D. photosynthesizers
    • Discuss
    • 3. Which is the largest gland in the human body?

    • Options
    • A. Pituitary
    • B. Liver
    • C. Pineal
    • D. Adrenal
    • Discuss
    • 4. Where is pain perceived in the brain?
    • Discuss
    • 5. Select the correct statement about photosynthesis by primary producers.

    • Options
    • A. Photosynthetic protists and prokaryotes Carry out the majority of the photosynthesis in aquatic communities.
    • B. Land plants carry out over 80% of the world's photosynthesis.
    • C. Cyanobacteria carry out more of the world's photosynthesis than protist do.
    • D. All of the above
    • Discuss
    • 6. Which statement is true about blood alcohol concentration?

    • Options
    • A. The higher the blood alcohol concentration, the more severe the hangover will be.
    • B. Drinking coffee and exercising will lower your blood alcohol concentration.
    • C. Blood alcohol concentration is affected by factors such as body size and gender.
    • D. None of the above
    • Discuss
    • 7. Which statement concerning the diagnosis of ADHD is true?

    • Options
    • A. Boys are more likely to be diagnosed with ADHD than girls
    • B. Most children "outgrow" symptoms of ADHD
    • C. About 20 percent of school-age children are diagnosed with ADHD
    • D. Racial minority status is a good predictor of being diagnosed with ADHD
    • Discuss
    • 8. Marasmus usually is associated with a deficiency of

    • Options
    • A. Vitamins
    • B. Calories
    • C. Proteins
    • D. Fats
    • Discuss
    • 9. Amarbel is an example of

    • Options
    • A. parasite
    • B. host
    • C. autotroph
    • D. saprotroph
    • Discuss
    • 10. Most foodborne illnesses are treatable.

    • Options
    • A. TRUE
    • B. FALSE
    • Discuss


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