Biology - Mock Test 231

Question 2301

The characteristic which enable animals to tolerate dehydration is called?

A) Osmoconformation B) Osmoregulaton C) Anhydrobiosis D) Anhydrosis

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Question 2302

Terrestrial animals like kangaroo rat survive even without drinking water since?

A) They don't require water for their metabolic process B) They can retain excessive water in their body during raining season. C) They feed on carbohydrate rich seeds which can provide them with metabolic water D) They are anhydrobiotic organisms

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Question 2303

Which of the following fishes excrete large volume of diluted urine?

A) Bony Marine fishes B) Fresh water fishes C) Both depending upon the surrounding water D) None of these

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Question 2304

Which of the following marine fishes are considered direct descendents of fresh water ancestors?

A) Hagfish B) Jelly Fish C) Star Fish D) Bony fishes

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Question 2305

Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?

A) Hagfish B) Fresh water fishes C) Bony fishes D) None of these

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Question 2306

Most of the marine invertebrates are?

A) Osmoconformers B) Osmoregulators C) Both depend upon the concentration of sea water D) None of these

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Question 2307

Rose is an example of?

A) Hydrophytes B) Mesophytes C) Xerophytes D) Halophytes

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Question 2308

Thick, waxy & leathery cuticle around leaves is present in?

A) Hydrophytes B) Mesophytes C) Xerophytes D) Halophytes

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Question 2309

Which of the following represents osmoregulatory steps taken by hydrophytes?

A) Increases transpiration by increasing the surface area of the leave. B) Small and thick leaves to decrease the surface area proportional to the volume of the leave. C) Stomata closing in sufficient supply, and opening in restricted supply of water. D) None of these

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Question 2310

In osmosis water molecules move from area of _______ to _______ through semipermeable memberane?

A) Higher solute concentration to lower solute concentration B) Lower solute concentration to higher solute concentration C) Lower solvent concentration to higher solvent concentration D) All of these

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