Problem: Traditional morphological and modern molecular phylogenetic analysis have both recognized a major evolutionary transition from "non-bilaterian" animals, which are those lacking a bilaterally symmetric body plan (Porifera, Ctenophora, Cnidaria and Placozoa), to "bilaterian" animals (Bilateria) whose body plans display bilateral symmetry. The latter are further classified based on a major division between Deuterostomes and Protostomes. The relationships among non-bilaterian animals are disputed, but all bilaterian animals are thought to form a monophyletic group. Current understanding of the relationships among the major groups of animals is summarized by the following cladogram:
What are some examples of non-bilaterian animals?
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Answer: Porifera, Ctenophora, Cnidaria and Placozoa

Problem: Solar power is the conversion of sunlight into electricity, either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP). CSP systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam. PV converts light into electric current using the photoelectric effect.
What is solar power?
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Answer: conversion of sunlight into electricity

Problem: Raleigh is home to a wide variety of religious practitioners. As of 2013, 46.41% of people in Raleigh are affiliated with a religion. The predominant religion in Raleigh is Christianity, with the largest numbers of adherents being Roman Catholic (11.3%), Baptist (10.85%), and Methodist (7.08%). Others include Presbyterian (2.52%), Pentecostal (1.99%), Episcopalian (1.12%), Lutheran (1.06%), Latter-Day Saints (0.99%), and other Christian denominations (6.68%) including Eastern Orthodox, Coptic Orthodox, Jehovah's Witness, Christian Science, Christian Unitarianism, other Mainline Protestant groups, and non-denominational.
What other denominations are there in Raleigh?
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Answer:
Eastern Orthodox, Coptic Orthodox, Jehovah's Witness,