Which of the following supports the chordate body and is the first feature of the skeleton to form?
a) dorsal nerve cord
b) notochord
c) series of pharyngeal slits
d) muscular, post-anal tail
Ans: b) notochord
You might also like to view...
An organism that uses CO2 for its carbon needs and sunlight for its energy needs would be called a ________.
A. halotroph B. saprobe C. heterotroph D. photoautotroph E. chemoheterotroph
Sympatric populations evolve reproductive isolation easily
a. true b. false
If you were to jog one kilometer a few hours after lunch, which stored fuel would you probably tap?
A) muscle proteins B) liver glycogen and muscle glycogen C) fat stored in adipose tissue D) blood proteins
From its atomic number of 10, you can predict that a neon atom:
A) is not chemically reactive. B) has 10 neutrons. C) has an unfilled outer shell. D) can easily gain or lose electrons.