Two trains, one from A to B and the other from B to A, start simultaneously. After theymeet, the trains reach their destinations after 4 h and 9 h respectively. The ration of their speeds is

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#Question id: 11770

#Section 2: Evolution

Natural selection in an animal population results in narrowing of the range of phenotypic variation but no change in the average phenotype. What kind of selection is this population experiencing?

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#Question id: 12353

#Section 1: Ecology

The number of individuals per unit area determines the population's

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#Question id: 16819

#Section 4: Behavioural Ecology

Name the movement of the plant in response to a magnetic field?

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#Question id: 4633

#Section 2: Evolution

Natural selection is based on all of the following except

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#Question id: 3339

#Section 2: Evolution

In a plant species, flower color locus either homozygous or heterozygous with genotype RR-red, Rr- pink and rr- white. The Proportional of pink flower in generation 0 is .50.  What is the level of remaining pink flower in a third generation of repeated selfing?