Quiz 8 - Chordata I

Question 1

4 chordate characteristics

Answer 1

dorsal hollow nerve cord
notochord
pharyngeal slits
post-anal tail

Question 2

animal lacking ability to regulate own body temperature

Answer 2

ectothermic

Question 3

animal using energy to regulate body temperature

Answer 3

endothermic

Question 4

animal that remains more active than the other, because no time needed to warm up

Answer 4

endothermic

Question 5

relies on ambient temperature for regulation

Answer 5

ectothermic

Question 6

requires far more food for more energy than ectotherm of the same size

Answer 6

endothermic animal

Question 7

subphylum of chordata (3)

Answer 7

Urochordata, cephalochordata, craniata

Question 8

examples of subphylum Urochordata

Answer 8

tunicates

Question 9

examples of subphylum cephalochordata

Answer 9

lancelets