What are the descriptions of Domain Archaea, Domain Bacteria, and Domain Eukarya

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

Before the can be observed by using a transmission electron microscope, cells are sliced into very thin sections. what disadvantage does this procedure present in the study of cellular parts

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.