Question
A farmer's land includes a wilderness area that is home to an endangered species of bird. He wants to sell the land to a developer, and you have been hired to evaluate the environmental concerns. "This little patch of land is not crucial for the bird species!" the farmer says, "In fact, my land is surrounded by several other wilderness patches that also have that bird." You reply. "It Is possible that your land acts as the ___ and the other areas are ___. If that's the case, development would be devastating to the population." A) metapopulation: population B) sink: sources C) population: metapopulation D) source: sinks Within a genus that normally produces large numbers of offspring, one particular species evolves maternal care behavior. What do you predict will happen to the survivorship curve? A) It may change from type III to type I. B) It may change from type I to type III. C) It may change from type I to type II. D) No change is likely. An unscrupulous dog breeder has been selecting for dogs that have very large litters, with the goal of maximizing profits. Why might this strategy be counterproductive? A) Litter size is not influenced by genetics. B) Intrauterine cannibalism will reduce the number of puppies.
Explanation / Answer
21. Answer - Option B
22. Answer - Option B, due to maternal care the no of deaths in younger age will be lesser.
23. Answer - Option A - Liter size is not influenced by genetics.
