Now you will examine the biodiversity crisis using the Hawaiian Islands as a case study. This archipelago is geographically diverse in size, elevation, and habitat type and is historically rich in biodiversity. Hawaii's variety of plants and animals is an example of how isolation can lead to the emergence of new species. This has produced many very specialized species, most of which are endemic, meaning they are found nowhere else on Earth. Though there is a variety of species, these species are particularly vulnerable to the effects of introduced species, habitat loss and fragmentation. What does the article mean by “these species are particularly vulnerable”?

Some species of wasps are social. the queen starts a colony from scratch each spring. she builds a small nest, and lays and raises a group of female workers. the workers enlarge the nest while the queen continues to lay eggs. unfertilized eggs become males that mate with newly hatched females. all of the wasps except the newly fertilized females die by the summer. which best describes this behavior? a)it is beneficial only to the males that do not fertilize eggs. b)it is beneficial only to the female workers that are not fertilized. c)it is beneficial to each one of the individual colony members. d)it is beneficial to the whole species, but not to all of the individual members.