About how much energy is transferred from a producer to a primary consumer?
(a) 90% of the original energy from the sun
(b) 10% of the original energy from the sun
(c) 10% of the plant's energy
(d) 0.9% of the plant's energy

C. 10% of the plant's energy is passed on. then 10% of the primary consumer's energy goes on to the secondary consumer and so fourth 

The type of microscope which can only be used to view non-living specimens is the electron microscope since this microscope involves the preparation of the sample to be observed which in the preparation the samples are being killed due to the method.