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: 20252

#XL - P Chemistry

The bond dissociation energy of gaseous H₂, Cl₂ and HCl are 104, 58 and 103 kcal mol^{– 1} respectively. The enthalpy of formation for HCl gas will be

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#Question id: 1089

#XL - Q Biochemistry

Which of the following statements describes a likely effect of a drug designed that inhibits the cellular response to testosterone?

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#Question id: 11299

#XL - R Botany

Carbon is initially incorporated into the food chain by _____________

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#Question id: 18003

#XL - R Botany

In a typical angiosperm, what is the sequence of structures encountered by the tip of a growing pollen tube on its way to the egg? 

1. micropyle 2. style 

3. ovary 4. stigma 

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#Question id: 1036

#XL - T Zoology

A urine sample with more than 100,000 organisms is considered indicative of infection. A urine sample containing 5,000 bacteria, with a generation time of 30 minutes, sits for 3 hours before finally being assayed. How many bacteria will then be present within the sample?