Due to a drought, an area is lacking the fertile soil to make plants
grow. What is this an example of?
A. population size
B. limiting factor
C. competition
D. population density

Why is it important that fibrin is insoluble in water?

If two parents who's blood types are both b produce a child that has blood type o, what can you say about the parent's genotybes? oa) one is ii ob) one is ibi oc) both are bi od) nothing, this is impossible

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures