Africa, Asia, South America, and Antarctica share some patterns of primitive (fossil) plants and early reptiles, but do not have similar mammal populations. This therefore

A) casts serious doubts upon the theory of continental drift and fused land masses.
B) is an unsolved puzzle probably due to the random nature of biological evolution.
C) suggests that a pattern of land bridges existed at different times in geological history.
D) suggests that the earlier plants and reptiles evolved while continents were joined but mammals radiated into diverse groups after separation.
E) suggests that the mammals evolved earlier while continents were joined but plants and reptiles radiated into diverse groups after separation.

The nurses at St. Mary's hospital are represented by the American Nurses Union. Recently, a second union challenged the representation authority of the American Nurses Union, claiming that they now have more support. The challenging union may also be called a _______________________________ union.

The Irish system of labor relations was built on the U.S. model following World War II.

Pandas live in the midst of bamboo forests located in a mountainous area. A study that examines how the presence of farmland in and around the bamboo forests prevents pandas from moving from one bamboo forest to another would utilize the study of which kind of biodiversity?

A) species diversity
B) genetic diversity
C) ecosystem diversity
D) landscape diversity
E) conservation diversity

Which of the following describes the relationship between the World Trade Organization and the International Labor Organization?

A) ILO standards and WTO trade regulations are independent from each other
B) ILO standards influence WTO trade regulations
C) WTO trade regulations determine ILO standards
D) ILO standards and WTO trade regulations are both determined by the United Nations

The mitotic spindle is made of ____.

A) Golgi bodies
B) nucleoprotein
C) endoplasmic reticulum
D) microtubules
E) chromatids