Here is a question about this article: The sensors are primarily single cells that detect light, chemicals, pressure waves and contact, and are present on the head, appendages (if any) and other parts of the body. Nuchal ("on the neck") organs are paired, ciliated structures found only in polychaetes, and are thought to be chemosensors. Some polychaetes also have various combinations of ocelli ("little eyes") that detect the direction from which light is coming and camera eyes or compound eyes that can probably form images. The compound eyes probably evolved independently of arthropods' eyes. Some tube-worms use ocelli widely spread over their bodies to detect the shadows of fish, so that they can quickly withdraw into their tubes. Some burrowing and tube-dwelling polychaetes have statocysts (tilt and balance sensors) that tell them which way is down. A few polychaete genera have on the undersides of their heads palps that are used both in feeding and as "feelers", and some of these also have antennae that are structurally similar but probably are used mainly as "feelers".
What is the answer to this question: What term means 'little eyes'?
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So... ocelli


Here is a question about this article: The city's Greektown and three downtown casino resort hotels serve as part of an entertainment hub. The Eastern Market farmer's distribution center is the largest open-air flowerbed market in the United States and has more than 150 foods and specialty businesses. On Saturdays, about 45,000 people shop the city's historic Eastern Market. The Midtown and the New Center area are centered on Wayne State University and Henry Ford Hospital. Midtown has about 50,000 residents and attracts millions of visitors each year to its museums and cultural centers; for example, the Detroit Festival of the Arts in Midtown draws about 350,000 people.
What is the answer to this question: Which market has the largest open air flowerbed in the US?
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So... Eastern Market


Here is a question about this article: Infection begins when an organism successfully enters the body, grows and multiplies. This is referred to as colonization. Most humans are not easily infected. Those who are weak, sick, malnourished, have cancer or are diabetic have increased susceptibility to chronic or persistent infections. Individuals who have a suppressed immune system are particularly susceptible to opportunistic infections. Entrance to the host at host-pathogen interface, generally occurs through the mucosa in orifices like the oral cavity, nose, eyes, genitalia, anus, or the microbe can enter through open wounds. While a few organisms can grow at the initial site of entry, many migrate and cause systemic infection in different organs. Some pathogens grow within the host cells (intracellular) whereas others grow freely in bodily fluids.
What is the answer to this question: What group of humans have increased susceptibility to chronic or persistent infections?
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So...
weak, sick, malnourished, have cancer or are diabetic