Chemical competition among organisms is referred to as __________. 

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#Question id: 16876

#Section 3: Mathematics and Quantitative Ecology

For a random sample of 9 women, the average resting pulse rate is x = 76 beats per minute, and the sample standard deviation is s = 5. The standard error of the sample mean is

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#Question id: 3314

#Section 2: Evolution

The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 14 gm to 16 gm. Which of the following natural selection operate on this species?

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#Question id: 7499

#General Aptitude

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: 8930

#Section 2: Evolution

Soon after the coelom begins to form, a researcher injects a dye into the coelom of a deuterostome embryo. Initially, the dye should be able to flow directly into the

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#Question id: 16838

#General Aptitude

To which object does the given top view correspond?