In a newly fertilized egg, the vitelline layer ________.

TLS Online TPP Program

#Question id: 26889

#Unit 10. Ecological Principles

Shifting cultivation is a form of agricultural practice in the hills of Northeast India, where a forest patch is cleared and cultivated for a few years, after which it is left fallow and allowed to regenerate. Succession occurs on such previously cultivated plots. Over time, the plant community should move towards which region in the graph?

TLS Online TPP Program

#Question id: 26890

#Unit 10. Ecological Principles

The MacArthur-Wilson equilibrium model of island biogeography predicts the number of species found on islands. The figure below depicts two volcanic islands located off a section of mainland coast.

 The MacArthur-Wilson model predicts that the relative numbers of bird species on the mainland and two islands would be

TLS Online TPP Program

#Question id: 26891

#Unit 10. Ecological Principles

 A researcher working on island biogeography mapped how isolation-controlled immigration (I), and area-controlled extinction (E), will act on number of species present on the islands. He forgot to label the size of the islands (small or large) and the location of the islands (near or far) on the graph.

Using information from MacArthur and Wilson's equilibrium theory, select the option that correctly identifies A, B, C and D in the figure above. 

TLS Online TPP Program

#Question id: 26892

#Unit 10. Ecological Principles

If a species has more genetic variation, it can adapt better

TLS Online TPP Program

#Question id: 26893

#Unit 10. Ecological Principles

Greater amphibian species diversity seen in

TLS Online TPP Program

#Question id: 26894

#Unit 10. Ecological Principles

Number of species of vertebrate animal (Global) in decreasing order