What type of energy transfer is made possible by a nine-volt battery in a calculator?

What is unique about the members of the group of fungi to which penicillium notatum belongs? they are not important for medicine. they are not made up of hyphae. they are used in fermentation. they lost the reproductive phase.

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

If animal agriculture was eliminated, how much grain would become available for human consumption?