_______________ features of the environment determine the abundance and distribution of living things.

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#Question id: 7498

#General Aptitude

Two trains of length 250 m and 140 m are running on parallel lines in the same direction at 58 km/h and 32 km/h respectively. Find the time taken by the slower train to pass the driver of the faster one.

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#Question id: 10653

#Section 1: Ecology

All offspring are produced in a single reproductive event, we term this pattern semelparity. Which of the following is characteristics feature for semelparity individuals?

a) Semelparity is common in insects and other invertebrates

b) Semelparous organisms may live for many years before reproducing

c) semelparity occur only in plant

d) In semelparity, exploitation competition is more common than interference competition

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#Question id: 3368

#Section 2: Evolution

The origin of a new plant species by hybridization, coupled with accidents during nuclear division, is an example of

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#Question id: 4614

#Section 2: Evolution

Which of these is the extant (that is, living) species most closely related to species X?

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#Question id: 12100

#Section 1: Ecology

Prairie dogs once covered the expanses of the Great Plains. Their grazing made the grass more nutritious for the huge herds of bison, and a variety of snakes, raptors, and mammals   preyed on the rodents. In fact, the black- footed ferret (now endangered) specialized in prairie dog predation. Today, growing housing and agricultural developments have covered many prairie dog towns. Which of the following statements about prairie dogs is true?