Multiple Choice
Echinoderm evolution is controversial but most zoologists agree that ___________ are related and form one clade.
A) sea stars and brittle stars
B) sea stars and sea urchins
C) sea stars and sea cucumbers
D) sea urchins and sea cucumbers
E) crinoids and sea urchins
Correct Answer:

Verified
Correct Answer:
Verified
Q4: Hemichordates show relationships to<br>A)arrow-worms.<br>B)arthropods and annelids.<br>C)molluscs and
Q5: If you went to the ocean and
Q6: Hemichordates live<br>A)in the open ocean with a
Q7: The early embryology of hemichordates is much
Q8: Which is NOT a correct association of
Q10: If you examined a biology class chart
Q11: The larvae of echinoderms have _ symmetry.
Q12: The larva of enteropneust hemichordates is known
Q13: A complex chewing apparatus found in many
Q14: The hemichordate "notochord" is<br>A)the feature proposed by