What is believed to be the MOST significant result of the evolution of the amniotic egg?

The fused clavicle bones of birds which most people know by the term ‘wishbone’ is termed a:

Chelonians have a dorsal and a ventral bony shell called (respectively) the: (dorsal) and the (ventral).

Which of the following are NOT a characteristic of gymnosperms?

Island populations are often subject to the influence of genetic drift because:

Which of the following traits do both lamprey and hagfish have in common: 

Which TWO of these vertebrates is NOT like the others (which two do not belong in this list):

You may answer ONE of any of the essay questions that you did not already answer above for up to 3 extra credit points depending on the quality of your answer.

Organisms such as paramecium, amoebas, volvox are in which Domain:

Which of the following are NOT structures associated with vascular tissues in plants: