Theis used to study the similarities in different species from long ago and to reveal links between the species . A. fossil record
B. biogeography
C. Molecular homology

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

If t=tall and t=short what will be the physical appearance of the offspring the cross below? a.some will be tall and some will be short b.they will all be tall c.they will all be short d.they will be medium height

49 ! how are energy cycles and growth cycles related?