Biodiversity hot spots, those areas with the greatest number of endemic species. Which of the following criteria to qualify as a hot spot region?

A. It must contain at least 1,500 species of vascular plants as endemics

B. It must have lost at least 70% of its original habitat

C. It must contain at least 500 species of bird species

D- It must contain high numbers of species

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#Question id: 11080

#Unit 7. System Physiology – Animal

The O2-CO2 diagram here shows a ventilation-perfusion ratio line for the normal lung. Which of the following best describes the effect of decreasing ventilation-perfusion ratio on the alveolar Po2 and Pco2?

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#Question id: 5033

#Unit 11. Evolution and Behavior

Which of the following statements is correct in regard to Homo erectus?

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#Question id: 10740

#Unit 10. Ecological Principles

Change in community structure through time is termed

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#Question id: 432

#Unit 1. Molecules and their Interaction Relevant to Biology

The ultimate product of complete oxidation of carbohydrates is ________.

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#Question id: 18392

#Unit 12. Applied Biology

How Deinococcus radiodurans are naturally resistant to quite high levels of ionizing radiation