Article: While the majority of flowers are perfect or hermaphrodite (having both pollen and ovule producing parts in the same flower structure), flowering plants have developed numerous morphological and physiological mechanisms to reduce or prevent self-fertilization. Heteromorphic flowers have short carpels and long stamens, or vice versa, so animal pollinators cannot easily transfer pollen to the pistil (receptive part of the carpel). Homomorphic flowers may employ a biochemical (physiological) mechanism called self-incompatibility to discriminate between self and non-self pollen grains. In other species, the male and female parts are morphologically separated, developing on different flowers.

Question: Why are a heteromorphic flower's carpels and stamens different lengths?
Ans: so animal pollinators cannot easily transfer pollen to the pistil


Article: Nintendo was accused of antitrust behavior because of the strict licensing requirements. The United States Department of Justice and several states began probing Nintendo's business practices, leading to the involvement of Congress and the Federal Trade Commission (FTC). The FTC conducted an extensive investigation which included interviewing hundreds of retailers. During the FTC probe, Nintendo changed the terms of its publisher licensing agreements to eliminate the two-year rule and other restrictive terms. Nintendo and the FTC settled the case in April 1991, with Nintendo required to send vouchers giving a $5 discount off to a new game, to every person that had purchased a NES title between June 1988 and December 1990. GameSpy remarked that Nintendo's punishment was particularly weak giving the case's findings, although it has been speculated that the FTC did not want to damage the video game industry in the United States.

Question: Who interviewed retailers as part of their investigation?
Ans: FTC


Article: To a large extent, the minority leader's position is a 20th-century innovation. Prior to this time congressional parties were often relatively disorganized, so it was not always evident who functioned as the opposition floor leader. Decades went by before anything like the modern two-party congressional system emerged on Capitol Hill with official titles for those who were its official leaders. However, from the beginning days of Congress, various House members intermittently assumed the role of "opposition leader." Some scholars suggest that Representative James Madison of Virginia informally functioned as the first "minority leader" because in the First Congress he led the opposition to Treasury Secretary Alexander Hamilton's fiscal policies.

Question: Why was minority leader position created?
Ans: not always evident who functioned as the opposition floor leader


Article: The context-sensitive button mechanic allows one button to serve a variety of functions, such as talking, opening doors, and pushing, pulling, and throwing objects.[e] The on-screen display shows what action, if any, the button will trigger, determined by the situation. For example, if Link is holding a rock, the context-sensitive button will cause Link to throw the rock if he is moving or targeting an object or enemy, or place the rock on the ground if he is standing still.[f]

Question: Many different types of interaction can be controlled by how many buttons?
Ans:
one