Chemoreceptors are responsible for taste, and are responsible for sensing whether the food is spicy or not. Mechanoreceptors are responsible for taking sensations of mechanical movement and nocioreceptors are pain receptors and would be responsible for giving you an overall reaction (usually of pain if you cant tolerate the spicy food)
Agriculture and economic if just one go for agriculture
Tides mean that organisms that live in the tidal zone must be adapted both to an above water and underwater environment, as well as be able to withstand waves that hit them every time the tide goes in or out. Some of these adaptations are structural, like barnacles being able to glue themselves to rocks. Others are behavioural, like animals that burrow in mud to protect themselves from the waves or mussels that clamp themselves closed whenever they are in the air to keep from losing water.
hope this helps