A student has written a report about scientists' discussions on whether dinosaurs were warm- blooded or cold blooded. Read the report and answer the question that follows.
1) When scientists began studying dinosaurs over 200 years ago, they assumed that dinosaurs were
ectothermic, or cold blooded, creatures. 2) This view prevailed until recently, but today some
"revisionist scientists" contend that dinosaurs were endothermic, or warm-blooded, creatures. 3)
The scientists on each side of the argument focus on two main factors to support their view: the
body structure of the dinosaurs and the environment in which they lived for millions of years.
4) The scientists who contend that dinosaurs were ectothermic point to the bone structures seen in
dinosaur fossils: dinosaurs' bone structures are like those of many reptiles, and reptiles are, of
course, cold blooded. 5) Moreover, revisionist scientists point out, modern birds display bone
structures which suggest they have descended from dinosaurs, and birds are warm-blooded.
The student wants to replace the transition word at the beginning of sentence 5 to more logically
connect the ideas expressed in sentences 4 and 5. Whic transition words or phrases would
achieve this goal? Select all that apply