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

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#Question id: 21241

#Unit 7. System Physiology – Animal

A 45-year-old female who had never needed to wear glasses experienced difficulty reading a menu in a dimly-lit restaurant. She then recalled that as of late she needed to have the newspaper closer to her eyes in order to read it. A friend recommended she purchase reading glasses. Visual accommodation involves

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#Question id: 5367

#Unit 8. Inheritance Biology

Following pedigree showing X link recessive disorder. Which of the following confirm a carrier female in a family?

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#Question id: 16771

#Unit 13. Methods in Biology

What is the median?

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#Question id: 840

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following  type of chaperon that are involved in functions to unfold proteins in preparation for their transport through membranes and to subsequently refold them after transport?

TLS Online TPP Program

#Question id: 12330

#Unit 10. Ecological Principles

Elephants are not the most common species in African grasslands. The grasslands contain scattered woody plants, but they are kept in check by the uprooting activities of the elephants. Take away the elephants, and the grasslands convert to forests or to shrublands. The newly growing forests support fewer species than the previous grasslands. Which of the following describes why elephants are the keystone species in this scenario?