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.
There are three levels of consumers in an ecological food chain: primary, secondary and tertiary consumers. Primary consumers are also known as herbivores and only eat plants and fruits. Secondary consumers eat primary consumers and are known as carnivores. Tertiary consumers eat secondary and primary consumers and are also known as carnivores. Consumers known as omnivores eat both plants and animals and can be either secondary or tertiary consumers.