Poison arrow frogs have brightly coloured skin patterns of blue, orange, yellow and red. This skin adornment is an example of what kind of defense against predation?

#Question id: 3409

#Section 2: Evolution

All genetic drift arises from sampling error, but there are several different ways in which sampling error can arise as a following

a. Reduced population size

b. Founder effect

c. Genetic bottleneck

d. Mate choice

Which of the following above way cause sampling error in succeed generation?

#Question id: 10654

#Section 2: Evolution

Complete the following hypothetical life table for a bird

What will be population size in next generation?

#Question id: 9159

#Section 2: Evolution

Which of the following investigations would shed the most light on the future distribution of organisms in temperate regions that are faced with climate change?

#Question id: 10699

#Section 1: Ecology

Two plant species co-occur in a prairie. Species X always occurs near species Y. However, species Y often occurs in isolation from species X and produces more seeds when alone than when growing next to species X. Which of the following interactions between species X and Y could generate this pattern?

#Question id: 11263

#Section 1: Ecology

Studies of parasitism of kentucky warblers by brown-headed cowbirds have shown that fragmentation has ____________the rate of parasitism because of ____________ edge habitat and ____________ habitat quality.