A good rule is never to use a glass thermometer for checking food temperatures. False

True

True

Explanation:

Don't use a glass thermometer when taking the temperature of food UNLESS it is in a shatterproof casing.

most community's take hundreds of years to become stable

producers within ecosystems are essential as they are at the base of the food chain. plants are examples of producers. they use the process of photosynthesis to capture light energy and use it to convert simple inorganic substances (carbon dioxide and water) into organic substances (glucose).