Tag: ethology

Questions Related to ethology

A frog has its brain crushed, but when pinched on the leg, the leg draws away. It is an example  of 

biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

  1. neurotransmitter induced response

  2. simple reflex

  3. condition reflex

  4. automated motor response.

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Correct Option: B
Explanation:

The action does not involve the brain and is an example of a simple reflex. When the leg of the frog is pinched, the stimulus is received by receptors on the skin that set up a sensory impulse. This impulse is carried to the spinal cord through the dorsal sensory root of a spinal nerve. The spinal cord then transforms the sensory impulse into a motor impulse. This impulse is then transmitted to the leg muscles. The muscles on receiving the impulse contract and the leg is withdrawn to avoid the stimulus. So, the correct option is 'simple reflex'.

State true or false. Correct false statement.
Group influence individual behaviour.

biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

  1. True

  2. False

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Correct Option: A

Which of the following is incorrect w.r.t scientific names of the given animal?

biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

  1. Brain coral - meandrine

  2. portuguese man of war - physalia

  3. Venus flower basket - Euplectella

  4. bath sponge - spongilla

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Correct Option: A

The anadromous migretory animals are 

biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

  1. salmon, Hilsa

  2. seagull, Penguins

  3. cartilasinons

  4. Anguilla

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Correct Option: A

Which animal is having less number of Chromosomes?

biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

  1. Onion

  2. Monkey

  3. Ascaris

  4. Rat

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Correct Option: A

Which of the following survives a temperature of $104^o$C to $106^o$C?

biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

  1. Marine Archaebacteria

  2. Hot water spring thermophiles

  3. Seeds of angiosperms

  4. Eubacteria

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Correct Option: A

Match the animals given in column A with their location in column B.

Column A Column B
I. Dodo (i) Africa
II. Quagga (ii) Russia
III. Thylacine (iii) Mauritius
IV. Stellar's sea cow (iv) Australia

Choose the correct match from the following.

biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

  1. I(i), II(iii), III(ii), IV(iv)

  2. I(iv), II(iii), III(i), IV(ii)

  3. I(iii), II(i), III(ii), IV(iv)

  4. I(iii), II(i), III(iv), IV(ii)

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Correct Option: A

Which of the following dinosaurs had huge fearsome dagger like teeth and was about $20$ feet in height? 

biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

  1. Ichthyosaurs

  2. Tyrannosaurus

  3. Pelycosaurs

  4. Therapsids

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Correct Option: A

Find the mismatch 

biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

  1. Ephyra - larva of Aurelia

  2. planula - Larve of obelia

  3. Gorgonia - sea fan

  4. sycon - Direct development

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Correct Option: A

Which of the following are the most distantly related to one another?

biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

  1. Sunfish and dolphins.

  2. Tree frogs and snakes.

  3. Vampire bats and birds.

  4. Bears and whales.

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Correct Option: A