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Important Questions on Organisms and Populations

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Alpha Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>Exercise-3>Q 28
Rooted submerged hydrophyte plant is
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Alpha Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>Exercise-3>Q 29
In terrestrial plant gaseous exchange takes place through stomata. Gaseous exchange in lower plants happens by
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Alpha Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>Exercise-3>Q 30
Presence of Pneumatophore roots & vivipary are special features of
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Alpha Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>Exercise-3>Q 31

Nt+1=Nt+B+I-D+E

In the above equation, if that value of D+E is more than B+I then population will-

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Alpha Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>Exercise-3>Q 32
Competition for nutrients, food, light and space is more severe between two
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Alpha Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>Exercise-3>Q 33
A plant or animal form produced in responses to a habitat, the adaptation not being heritable is called
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Alpha Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>Exercise-3>Q 34
If in a pond there are 40 Lotus plants last year and through reproduction 16 new plants are added taking the current population 56, new the birth will be:-
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Alpha Question Bank for Medical: Biology>Chapter 35 - Organisms and Populations>Exercise-3>Q 35

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Above diagram represents age pyramids of human population. In which a, b & c represent triangular, Bell shaped and Urn shaped age pyramid. Which of the following statement is true?