Question: Question: "Which of the following never lacks a brain: invetebrates or vetebrates?" Context: "The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. Only a few invertebrates such as sponges, jellyfish, adult sea squirts and starfish do not have a brain; diffuse or localised nerve nets are present instead. The brain is located in the head, usually close to the primary sensory organs for such senses as vision, hearing, balance, taste, and smell. The brain is the most complex organ in a vertebrate's body. In a typical human, the cerebral cortex (the largest part) is estimated to contain 1533 billion neurons, each connected by synapses to several thousand other neurons. These neurons communicate with one another by means of long protoplasmic fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body targeting specific recipient cells." Answer:
Answer: vertebrate

Question: Question: "How often can people in this region build snowmen?" Context: "At the other extreme mountainous regions can be windy, cold, and areas at elevation of 750 meters or more (same elevation as Jerusalem) will usually receive at least one snowfall each year. From May to September, rain in Israel is rare. With scarce water resources, Israel has developed various water-saving technologies, including drip irrigation. Israelis also take advantage of the considerable sunlight available for solar energy, making Israel the leading nation in solar energy use per capita (practically every house uses solar panels for water heating)." Answer:
Answer: at least one

Question: Question: "What is Barth?" Context: "Anthropologists have contributed to the debate by shifting the focus of research: One of the first challenges for the researcher wishing to carry out empirical research in this area is to identify an appropriate analytical tool. The concept of boundaries is useful here for demonstrating how identity works. In the same way as Barth, in his approach to ethnicity, advocated the critical focus for investigation as being "the ethnic boundary that defines the group rather than the cultural stuff that it encloses" (1969:15), social anthropologists such as Cohen and Bray have shifted the focus of analytical study from identity to the boundaries that are used for purposes of identification. If identity is a kind of virtual site in which the dynamic processes and markers used for identification are made apparent, boundaries provide the framework on which this virtual site is built. They concentrated on how the idea of community belonging is differently constructed by individual members and how individuals within the group conceive ethnic boundaries." Answer:
Answer:
researcher