Which symbionts help plants absorb phosphorus and trace metals such as zinc and copper?
Correct answer B. Fungi
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Everyday Science MCQs
Page 89 of Everyday Science multiple-choice questions with answers. Tap an option to check yourself.
Page 89 of 198
Roughly how many times a day do the heart valves normally open and close?
Correct answer D. 100,000
A low level of CO2 encourages which response in stomata?
Correct answer B. Opening
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What are most human kidney stones made of?
Correct answer C. Calcium oxalate
How many hypotheses are commonly proposed to explain the opening and closing of stomata?
Correct answer D. Two
In eye donation, which part of the donor’s eye is used?
Correct answer B. Cornea
What directly controls the opening and closing of stomata?
Correct answer B. Light
Using the definition of 1 kWh, how long does a 100-watt bulb take to use one unit of electricity?
Correct answer A. 10 hours
How much energy do children aged one to three years need each day?
Correct answer A. 1200 kcal
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Who put forward the pressure flow theory?
Correct answer D. Ernst Münch
What is a substance that increases the efficiency of a catalyst called?
Correct answer A. Promoter
Which of the following can be found in an open circulatory system?
Correct answer C. White Blood Cells
Which way of expressing the concentration of a solution is independent of temperature?
Correct answer D. Molality
About 95% of the cytoplasm of red blood cells consists of which substance?
Correct answer C. Haemoglobin
The statement “Each electron in an atom must have its own unique set of quantum numbers” describes which principle?
Correct answer A. Pauli exclusion principle
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Which white blood cells develop into macrophages that engulf larger particles by phagocytosis?
Correct answer D. Monocytes
Which sequence lists electromagnetic radiation in order of increasing energy, from lowest to highest?
Correct answer C. Radio, infrared, visible, ultraviolet, X-ray, gamma ray
Which structures act as multisensory hydraulic valves in plants?
Correct answer B. Guard cells
Which of these types of radiation has the longest wavelength?
Correct answer C. Infrared light
Which of these types of radiation carries the most energy?
Correct answer C. Gamma rays