Explanation:
ddl ttyl ri weep rip sp ero el well do
Um how long do u have ...............
Answer:
notochord, a dorsal hollow nerve cord and pharyngeal slits.
I think the correct answer from the choices listed above is the last option. The control group to be used to test the hypothesis would be the swallows with average-length tails. A control group <span>is defined as the </span>group<span> in an experiment or study that does not receive treatment by the researchers.</span>
