The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 16 gm to 24 gm. Which of the following natural selection operate on this species?

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#Question id: 11409

#XL - T Zoology

Species characteristics that make them less prone to extinction are listed below:

A. Narrow niche and specialized

B. High dispersal power

C. High trophic status

D. Long life span

Which of the following is the correct combination?

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#Question id: 19930

#XL - P Chemistry

In the atomic spectrum of hydrogen, the spectral lines pertaining to electronic transition of

n = 4 to n = 2 refers to

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#Question id: 814

#XL - Q Biochemistry

Which of the following uncommon amino acids are not found in the proteins?

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#Question id: 19579

#XL - P Chemistry

Why is nitrogen preferred in the welding and cooling of materials?

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#Question id: 27582

#XL - U Food Technology

Which of the following food is a source of phytoestrogens?