Tag: endocrine system in humans

Questions Related to endocrine system in humans

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

The bats can fly in the dark because

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

  1. They have a better vision in the dark

  2. The light startles them

  3. They produce ultrasonics

  4. None of the above

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Correct Option: C

Bears are usually hunted and killed for their

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

  1. Teeth

  2. Skin

  3. Gall bladder

  4. Nails

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Correct Option: B

Identify the wrong statement from the following:

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

  1. More than one adaptive radiation taking place in an isolated area having different habitats is called convergent evolution.

  2. First reptiles from Sauropsida were turtles.

  3. Bones of forelimbs of vertebrates are examples of homologous organs.

  4. Lycopods, ferns and conifers originated from ancestor named Psilophyton.

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Correct Option: D

Continued secretion of milk is regulated by

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

  1. Prolactin

  2. Oestrogen

  3. Progesterone

  4. Aldosterone

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Correct Option: A
Explanation:

Prolactin (PRL) is a hormone that stimulates milk production. Prolactin also plays an essential role in metabolism, regulation of the immune system, and pancreatic development.

Therefore, the correct answer is option A.

To yield more milk, cow is injected with

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

  1. Sorbitol

  2. Prolactin

  3. Gonadotrophs

  4. Stilbestrol

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Correct Option: B
Explanation:

Prolactin (also called as luteotrophic) hormone is associated with lactation (secretion of milk from the mammary gland). It is a hormone released by the pituitary gland that stimulates breast development and milk production in women. Therefore, to yield more milk cow is injected with prolactin hormone. 

Sorbitol is a sweetener found in some fruits (like apple, pear etc.). 
Gonadotroph is a type of basophil in the adenohypophysis (anterior pituitary gland) whose granules secrete FSH (follicle-stimulating hormone) and LH (luteinizing hormone). 
Stilbesterol is synthetic estrogen used in hormone therapy, as a post-coital contraceptive, and as a growth-promoting agent for livestock. 
Therefore, the correct answer is option B.