Multiple Choice
Hox genes ____.
A) control the formation of shells
B) control the development of individual body regions
C) mostly evolved after the Cambrian explosion
D) guide the formation of exoskeletons
E) evolved before the Cambrian explosion
Correct Answer:

Verified
Correct Answer:
Verified
Q1: One of the most significant roles of
Q3: Fusulinids, greatly diversified in the Pennsylvanian and
Q4: Seedless vascular plants evolved which of the
Q5: What feature distinguishes the two subclasses of
Q6: _ were large amphibians abundant during the
Q7: Sessile organisms _.<br>A)move about freely<br>B)move only to
Q8: The critical factors in species survival of
Q9: The earliest fish were _.<br>A)ray-finned<br>B)boney-finned<br>C)cartilaginous<br>D)jawless<br>E)jawed
Q10: What is the correct order of trophic
Q11: What characterized the sphenopsid plant group?