1. Which of the following do chordates NOT have at any point in their lives?

notochord
pharyngeal gill pouches
nerve cord
none of the above
2. The presence of ______ tissue layer(s) makes cnidarians diploblastic.

one
two
three
none of the above
3. What do sand dollars use their spines for?

locomotion
reproduction
digestion
none of the above
4. Which of the following describes Chlamydomonas?

unicellular
autotrophic
sexual reproducers
all of the above

Question

1. 	Which of the following do chordates NOT have at any point in their lives?
 	
	notochord
	pharyngeal gill pouches
	nerve cord
	none of the above
2. 	The presence of ______ tissue layer(s) makes cnidarians diploblastic.
 	
	one
	two
	three
	none of the above
3. 	What do sand dollars use their spines for?
 	
	locomotion
	reproduction
	digestion
	none of the above
4. 	Which of the following describes Chlamydomonas?
 	
	unicellular
	autotrophic
	sexual reproducers
	all of the above

anonymous · Answer

@dezzy-lee19 Post what you think is correct and I will then help.

pooja195 · Answer

Hey there! Welcome to openstudy! consider reading the CoC: http://openstudy.com/code-of-conduct Heres a link that will help you get to know the site better: http://openstudy.com/study#/updates/548c04e1e4b0f2fbdc23dd6c Posting multiple question is against the rules make a single post for each one