Tag: zoology

Questions Related to zoology

Littoral zone is found along

zoology adaptations to different ecosystems adaptations to aquatic habitat different ecosystem ecosystem

  1. High mountain

  2. Sea

  3. River

  4. Desert

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Correct Option: B
Explanation:

1) The zone at the edge of a lake or sea or in an aquatic habitat which is alternatively exposed to air is called 'Littoral zone'.

2) Therefore, sunlight is also available here which penetrates to the sediment level and immersed in water, which helps and allow to grow aquatic plants.
3) This coastal zone is rich producers from the surface to bottom, with a large number green alga
4) Organisms which are mobile such as crabs, snails, limpets are usually found in these areas.
So, the correct answer is 'Sea'

Aquatic photodiffraction produces zones

zoology adaptations to different ecosystems adaptations to aquatic habitat different ecosystem ecosystem

  1. Euphotic, disphotic and aphotic

  2. Aphotic, euphotic and disphotic

  3. Euphotic, aphotic and disphotic

  4. Disphotic, aphotic and euphotic

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Correct Option: A

Metalimnion is _____________.

zoology adaptations to different ecosystems adaptations to aquatic habitat different ecosystem ecosystem

  1. Aphotic region of a deep lake

  2. Middle transitional zone

  3. Upper part subject to temperature fluctuations

  4. Lower part where water temperature is low

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Correct Option: A

Phytoplankton are dominant in

zoology adaptations to different ecosystems adaptations to aquatic habitat different ecosystem ecosystem

  1. Limnetic zone

  2. Profundal zone

  3. Littoral zone

  4. Benthic zone

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Correct Option: A
Explanation:
Phytoplanktons are microscopic floating organisms present in the first exposed layer of water, this zone has abundance of light
So, the correct answer is 'Limnetic zone'

The zone at the edge of a lake or ocean which is alternatively exposed to air and immersed in water is called.

zoology adaptations to different ecosystems adaptations to aquatic habitat different ecosystem ecosystem

  1. Pelagic zone

  2. Benthic zone

  3. Lentic zone

  4. Littoral zone

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Correct Option: D
Explanation:

Littoral zone is the shallow coastal zone. Light is available upto bottom in this zone. Therefore, producers are found throughout from surface to bottom in this zone. Rooted vegetation occurs along shores. Consumers are also available throughout, i.e., from surface to the bottom in this zone.

Bottom dwellers, where no light occurs is found in

zoology adaptations to different ecosystems adaptations to aquatic habitat different ecosystem ecosystem

  1. Benthic zone

  2. Abyssal zone

  3. Pelagic zone

  4. Lotic zone

  5. All of the above

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Correct Option: B
Explanation:

The abyssal zone is the abyssopelagic layer or pelagic zone, that contains the very deep benthic communities near the bottom of oceans. The benthic zone begins from shore to continental shelf. The deep sea floor is called as the abyssal plain.

Increased surface UV leads to increased __________ ozone

zoology adaptations to different ecosystems adaptations to aquatic habitat different ecosystem ecosystem

  1. tropospheric

  2. stratospheric

  3. lonospheric

  4. exospheric

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Correct Option: A

Organisms belonging to benthos of a lake are

zoology adaptations to different ecosystems adaptations to aquatic habitat different ecosystem ecosystem

  1. Germs and beetles

  2. Chronomid larvae and red annelids

  3. Daphnia and notonecta

  4. Ranatra and copepods

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Correct Option: B
Explanation:

Benthos is the community of organisms that live in or near the seabed. This zone is called as the benthic zone. Chronomid larvae, phantom larva, clams, red annelids are some organisms that belongs to benthose of a lake.

Thus, the correct answer is option 'Chronomid larvae and red annelids.'

Benthic organisms are affected most by

zoology adaptations to different ecosystems adaptations to aquatic habitat different ecosystem ecosystem

  1. Surface turbulance of water

  2. Sediment characteristics of aquatic ecosystems

  3. Water holding capacity of soil

  4. Light reaching the forest floor

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Correct Option: B

The human ear is equipped to register sounds of frequencies between

zoology option a: neurobiology and behaviour structure and function of ear perception of stimuli neural control and coordination

  1. 20 to 20,000 cycles per second

  2. 1000 to 2000 cycles per second

  3. 5000 to 7000 cycles per second

  4. 5000 to 10,000 cycles per second

  5. 10,000 to 20,000 cycles per second

Show answer
Correct Option: A
Explanation:

The middle ear is mainly known as a sound amplifier of the ear. It has ear ossicles to amplify the sound. The human ear can respond to minute pressure vibrations in the air if they are in the audible frequency range of 20 Hz - 20,000 Hz or cycles per second.

So, the correct answer is option A.