Which statement is true regarding animal phylogeny?
A. sponges are eumetazoans
B. some animals lack true tissues and organs
C. the most diverse phylum (by species) is Chordata
D. Metazoans are a paraphyletic clade
Answer: B
Which statement is true regarding animal phylogeny?
A. sponges are eumetazoans
B. some animals lack true tissues and organs
C. the most diverse phylum (by species) is Chordata
D. Metazoans are a paraphyletic clade
Answer: B