This immense mountain range began to form between 40 and 50 million years ago, when two large landmasses, india and eurasia, driven by plate movement, collided. because both these continental landmasses have about the same density, one plate could not be subducted under the other. the pressure of the impinging plates could only be relieved by thrusting skyward, and forming the mountains.
a) eurasian
b) himalaya
c) rocky
d) ural

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.