#Question id: 4713
#Section 2: Evolution
A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the triazine works well and almost all the pigweed dies; but after several years, the farmer sees more and more pigweed. Which of these statements explains why the pigweed reappeared?
#Question id: 10596
#Section 2: Evolution
In a experimental population the birth rate is 18 per 1000 and death rate is 14 per 1000. Size of population is 10,000 at time t then what will be size of population at time t+1?
#Question id: 12109
#Section 1: Ecology
#Question id: 10747
#Section 1: Ecology
Extinction describes a loss of learning in _____________.
#Question id: 10582
#Section 1: Ecology
Which of the following is incorrect?