Tag: biology

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Questions Related to biology

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

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

  1. Marine Archaebacteria

  2. Hot water spring thermophiles

  3. Seeds of angiosperms

  4. Eubacteria
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Marine Archaebacteria, specifically hyperthermophiles found in hydrothermal vents, are known to survive and thrive at temperatures exceeding 100 degrees Celsius.

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

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.

  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)
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

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

  1. Sunfish and dolphins.

  2. Tree frogs and snakes.

  3. Vampire bats and birds.

  4. Bears and whales.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sunfish are bony fish, while dolphins are mammals. This represents a massive evolutionary gap compared to the other pairs, which are all tetrapods (amphibians, reptiles, birds, or mammals).

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

Identify the wrong statement from the following:

  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.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lycopods, ferns, and conifers did not originate from Psilophyton; Psilophyton is a genus of extinct vascular plants, but it is not the common ancestor for all these groups.

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

Continued secretion of milk is regulated by

  1. Prolactin

  2. Oestrogen

  3. Progesterone

  4. Aldosterone
Reveal answer Fill a bubble to check yourself
A Correct answer
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.