Science Practice Quiz 184

Q1.When do plants carry out respiration?

A. Only during the day. B. Only at night. C. Only during photosynthesis. D. Both during the day and at night.

Q2.Which of the following organs do frogs use for respiration?

A. Only lungs. B. Only skin. C. Gills and lungs. D. Skins and lungs.

Q3.Which statement about the respiratory system of fishes is true?

A. Fishes have lungs for respiration. B. Fishes breathe through their skins. C. Fishes do not have lungs for respiration. D. Fishes use spiracles for breathing.

Q4.What happens to the size of the chest cavity during inhalation?

A. It decreases. B. It remains unchanged. C. It increases. D. It first decreases then increases.

Q5.What are the air tubes of insects referred to as in the context of respiration?

A. Lungs. B. Gills. C. Trachea. D. Nostrils.

Q6.Which of the following is presented as a reason for mountaineers carrying oxygen?

A. The air at high altitudes is too cold. B. At an altitude of more than 5 km there is no air. C. They need extra energy for climbing. D. The air pressure is too high.

Q7.According to the provided text, for which type of organisms is oxygen considered toxic?

A. Organisms that use oxygen for respiration B. Organisms that do not use oxygen for respiration C. Organisms that breathe pure oxygen for long periods D. Organisms that live in aquariums

Q8.What potential danger is associated with breathing pure oxygen for humans and other organisms?

A. It causes immediate death B. It leads to increased energy levels C. It may be dangerous if breathed for a long duration D. It enhances respiratory efficiency

Q9.What structures are described in the text as covering the gills on both sides of a fish's head?

A. Scales B. Fins C. Flap-like structures D. Eyes

Q10.How do the flap-like structures covering the gills of a fish move during respiration?

A. They remain stationary B. They open and close alternately C. They vibrate continuously D. They only open when the fish is active

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Science Practice Quiz 184