Problem: Several animal phyla are recognized for their lack of bilateral symmetry, and are thought to have diverged from other animals early in evolution. Among these, the sponges (Porifera) were long thought to have diverged first, representing the oldest animal phylum. They lack the complex organization found in most other phyla. Their cells are differentiated, but in most cases not organized into distinct tissues. Sponges typically feed by drawing in water through pores. However, a series of phylogenomic studies from 2008-2015 have found support for Ctenophora, or comb jellies, as the basal lineage of animals. This result has been controversial, since it would imply that that sponges may not be so primitive, but may instead be secondarily simplified. Other researchers have argued that the placement of Ctenophora as the earliest-diverging animal phylum is a statistical anomaly caused by the high rate of evolution in ctenophore genomes.
Animal phyla that are recognized for their lack of bilateral symmetry are thought to have come from where?
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Answer: other animals early in evolution


Problem: It was rumored that Schwarzenegger might run for the United States Senate in 2010, as his governorship would be term-limited by that time. This turned out to be false.
What political office did people speculate Schwarzenegger might try for in 2010?
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Answer: United States Senate


Problem: Carthage was a Phoenician colony on the coast of Tunisia. Carthaginian culture came into contact with the Greeks through Punic colonies in Sicily and through their widespread Mediterranean trade network. While the Carthaginians retained their Punic culture and language, they did adopt some Hellenistic ways, one of the most prominent of which was their military practices. In 550 BCE, Mago I of Carthage began a series of military reforms which included copying the army of Timoleon, Tyrant of Syracuse. The core of Carthage's military was the Greek-style phalanx formed by citizen hoplite spearmen who had been conscripted into service, though their armies also included large numbers of mercenaries. After their defeat in the first Punic war, Carthage hired a Spartan mercenary captain, Xanthippus of Carthage to reform their military forces. Xanthippus reformed the Carthaginian military along Macedonian army lines.
What Spartan mercenary helped reform Carthage's military?
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Answer:
Xanthippus of Carthage