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: 8863

#XL - T Zoology

Which class of the phylum Cnidaria includes ʺjelliesʺ with rounded (as opposed to boxlike) medusae? 

TLS Online TPP Program

#Question id: 8864

#XL - R Botany

Corals are most closely related to which group?

TLS Online TPP Program

#Question id: 8864

#XL - T Zoology

Corals are most closely related to which group?

TLS Online TPP Program

#Question id: 8886

#XL - T Zoology

Which characteristic is shared by both cnidarians and flatworms?

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#Question id: 8887

#XL - T Zoology

Generally, members of which flatworm class(es) are nonparasitic?

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#Question id: 8888

#XL - R Botany

In a small stream, you pick up a rock and observe many small, flattened worms crawling on its undersurface. You decide that they belong to the phylum Platyhelminthes. To which class do they probably belong?