Multiple Choice
Some researchers claim that sponge genomes have homeotic genes, but no Hox genes. If true, how would this impact the phylogenetic tree of animals?
A) sponges must no longer be classified as animals
B) it would confirm the identity of sponges as "basal animals"
C) extinct sponges must have been the last common ancestor of animals and fungi
D) it would require sponges to be reclassified as choanoflagellates
Correct Answer:
Verified
Correct Answer:
Verified
Q22: Use the figure to answer the question.
Q23: Nine-banded armadillos give birth to four genetically
Q24: Trichoplax adhaerens is the only living species
Q25: Which of these statements, if accurate, would
Q26: Which of the following characteristics in an
Q28: Soon after the coelom begins to form,
Q29: Use the figure to answer the question.
Q30: One hypothesis suggests that the Cambrian explosion
Q31: If an organism exhibits a head with
Q32: Which of the following organisms was most