If two salamanders from different species cannot mate because one mates in spring and the other in fall, this is what kind of isolation? Group of answer choices A. behavioral B. mechanical C. habitat D. temporal E. gametic

How does lupine affect the range of the Karner Blue butterfly? A Lupine displaces Karner Blue host plants. B Lupine promotes diseases of Karner Blue. C The Karner Blue is found everywhere lupine is found. D The Karner Blue can only live where lupine grows.

Which diagram below correctly represents the two barnacle species' realized niches? A. O Image A O Image B Image C ) B. C. Balanus balanoides Chthamalus stellatus

. If the Gopher tortoise is species 1, and a blue indigo snake (that depends on Gopher Tortoise burrows) is species 2: what are the corresponding interaction signs .a. +,+b. +,0c. 0,+ d. 0,-24

In dioecious plants, males usually produce larger flowers that attract more pollinators than do females. This is an example of a. character displacement b. sexual selection through female choice c. sexual selection through male-male competition d. divergence in resource use e. a cost of reproduction

Polar bears are considered solitary species—animals that spend most of their lives on their own. What is a reason polar bears may practice short-term sociality?         hunting          space         breeding         shelter

Scientists found that different beak shapes correlate with different mating songs in Darwin's finches. Which hypothesis does this support?   A. Darwin's finches are not different species according to the Biological Species Concept.   B. Adaptation to different food sources led to behavioral isolation in Darwin's finches.   C. Adaptation to different food sources likely occurred after reproductive isolation in Darwin's finches.   D. Mating songs are primarily determined by the acoustics of different beaks.