Tag: diversity and classification in animals

Questions Related to diversity and classification in animals

It can be said that some animals in their evolutionary development preferred to be conformers than regulators. 
Which of the following can be the best suited reason for it?

biology animal world oviparous and viviparous diversity and classification in animals adaptations in animals

  1. The metabolic of these organisms can occur at a very wide rang of temperature.

  2. Maintaining homeostasis is an energetically expensive process

  3. The enzymes of these organisms are functional at high temperatures.

  4. Both B and C

Show answer
Correct Option: B
Explanation:

Maintaining homeostasis, especially thermoregualtion is energetically expensive for many organisms. During the course of evolution, the costs and benefits of maintaining a constant internal environment were taken into consideration and thus some species preferred to be conformers.

One species is harmed whereas the other is unaffected. The interaction is

biology animal world oviparous and viviparous diversity and classification in animals adaptations in animals

  1. Amensalism

  2. Commensalism

  3. Parasitism

  4. Predation.

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Correct Option: A
Explanation:

Amensalism is a negative interaction in which one species is unaffected and other is harmed. In Commensalism one species is unaffected and other is benefited. Whereas in Parasitism and Predation one species is benefited other is harmed, So the correct option is "Amensalism"

Consider the following statements (a-d) each with one or two blanks (i) bears go into 1______  during winter to 2_____ cold weather (ii) A conical age pyramid with a broad base represents 3_________ human population (iii) A wasp pollinating a fig flower is an example of 4________ (iv) A area with high levels of species richness is know as 5_________. 
Which one of the following options, gives the correct fill ups for the respective blanks numbers from 1 to 5 in the statements.

biology animal world oviparous and viviparous diversity and classification in animals adaptations in animals

  1. 3-stable,4-commensalism,5-(marsh)

  2. 1-aestivation, 2-escape,3-stable,4-mutualism

  3. 3-expanding,4-commensalism ,5-biodiversity park

  4. 1- hibernation,2-escape,3-expanding,5-hot spot.

Show answer
Correct Option: D
Explanation:

(i) bears go into 1-hibernation during winter to 2-escape cold weather (ii) A conical age pyramid with a broad base represents 3-expanding human population (iii) A wasp pollinating a fig flower is an example of 4-mutualism (iv) A area with high levels of species richness is know as 5-hot spot.


So the correct option is '1- hibernation,2-escape,3-expanding,5-hot spot'.

circadian rhythms of our body is controlled by

biology animal world oviparous and viviparous diversity and classification in animals adaptations in animals

  1. brain

  2. kidney

  3. spinal cord

  4. none of the above

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Correct Option: A
Explanation:

(A)Circadian rhythms regulates the sleep wake cycle regulated by the pineal gland in the brain.

(B)Fight and flight hormones are regulated by kidney.
(C)Spinal cord regulates the reflexes.
So, the correct option is 'Brain'.

Killing of animals disturbs

biology animal world oviparous and viviparous diversity and classification in animals adaptations in animals

  1. Good for eco system

  2. Good for man

  3. The balance of nature

  4. None

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Correct Option: C

Polar bears live at

biology animal world oviparous and viviparous diversity and classification in animals adaptations in animals

  1. Both North and South Poles

  2. South Pole only

  3. North Pole only

  4. Both Polar regions as well as several forests

Show answer
Correct Option: C
Explanation:

Polar bears are large, white bears that like cold climates, fatty meals and long days of hunting. No matter how adorable polar bears look, these animals are not cuddly. In fact, polar bears are ferocious hunters, and they are the biggest carnivores among land animals. Polar bears live in countries that ring the Arctic Circle: Canada, Russia, the United States (in Alaska), Greenland and Norway.  In the winter, temperatures in the Arctic are usually around minus 29 degrees Fahrenheit (minus 34 degrees Celsius) and can reach as low as minus 92 F (minus 69 C). The temperature of the water is frigid, as well, reaching as low as 28 F (minus 2 C), the freezing point of seawater. 

So the correct option is 'north pole only'.

In which plant heterophyllous development does not occur due to environment?

biology animal world oviparous and viviparous diversity and classification in animals adaptations in animals

  1. Coriander

  2. Cotton

  3. Larkspur

  4. Buttercup

  5. Canary grass

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Correct Option: E
Explanation:
Plants shows different kinds of structure in response to the environment during their development. This is called as plasticity. For example, heterophyllous development occurs in cotton, coriander and larkspur. In these plants, leaves of the young plants are different in shape than the leaves of mature plants. Buttercup also shows plasticity. In this, the shape of leaves is different in air and in water.
Thus, the correct answer is option E.

The seral communities developing on a water body are known as

biology animal world oviparous and viviparous diversity and classification in animals adaptations in animals

  1. Hydrosere

  2. Hydrophyte

  3. Hydrosphere

  4. Hydrologic cycle

Show answer
Correct Option: A
Explanation:

A;Hydrosere - Plant succession occurs in water bodies is called Hydrosere.

B.Hydrophyte - Plants grow in water related areas.
C.Hydrosphere - The area, in which water is present.
D.Hydrological cycle - Cyclic movement of water in nature is called Hydrological cycle
So, the correct option is 'Hydrosere'.