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Diploblastic organisms are found in which phylum:

Which structure(s) is/are lacking in bacteria?

What vertebrate detects the bioelectrical signals given off by prey [a], and what structure do they have that does this [b]:

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

Select all of the following that have flagellated sperm:

Which of the following are NOT a characteristic of gymnosperms?

A sorus is

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

Which of these has the stages of development in order:

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.