The simplest structures that can carry out all of the activities characteristic of life are: A. cells

B. atoms

C. molecules

D. crystals.

Analyze the central conflict and its in a story to discover the theme. o resolution o protagonist antagonist character

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

According to the cladogram, which organisms have roundworms as a common ancestor?