A(n) ________ protects the internal organs of ray-finned fishes
A) exoskeleton made of cartilage
B) notochord
C) internal bony skeleton
D) exoskeleton made of chitin
E) internal cartilage skeleton
C
You might also like to view...
Males and females often differ in their reproductive strategies due to the fact that males can increase the number of
offspring they produce by ____ while females reproduce most successfully by ____.
a. mating with a high-quality female; mating with a high-quality male b. driving off other males; defending a productive territory c. defending a productive territory; enlisting multiple males to aid in raising her offspring d. mating with multiple females; mating with a high-quality male e. mating with multiple females; mating with multiple males
Artemia and Fast Plant™ bioassays can be used to identify
a. cytotoxins. b. herbicides. c. plant growth stimulators. d. all of the above.
Four of the five answers listed below are regions of the vertebral column. Select the exception
a. cervical b. appendicular c. lumbar d. thoracic e. sacral
Repeated stimulation of a motor unit over a short period of time leads to
a. fatigue. b. tetanus. c. increased muscle strength. d. muscle twitch. e. increased ATP production.