Quick Answer. It takes between 10 to 12 minutes to completely melt an ice cube on concrete with an ambient temperature of 109 degrees Fahrenheit. Ice melts at different speeds based on a range of factors such as the temperature of the ice, the size of the ice and the ambient temperature. Continue Reading.
Report Abuse. Most bacteria are not producers, they are consumers. Most bacteria are decomposers, though some are parasites. The bacteria that are called cyanobacteria are producers that use photosynthesis. There are also some bacteria that live near deep sea volcanic vents and produce their own food using chemicals for energy.
Fungi and some species of bacteria are also heterotrophs. Herbivores are considered the primary consumers in the food chain because they obtain their food directly from the autotrophs of the plant world. Heterotrophs represent about 95 percent of all living organisms. Learn more about Biology