Sponges Have Collar Cells Called Choanocytes That Consist of a Central

Q9: A molecular biologist is studying the physical

Q10: Two scientists working in the field discover

Q11: The photosynthetic eukaryotes<br>A) form a monophyletic group

Q12: A biologist discovers an aquatic organism that

Q13: Heliozoans are radially symmetrical unicells with intricate

Q15: Parabasalids are a small group of protists

Q16: Typical heterokont protists have plastids that were

Q17: Cryptomonads differ from other photosynthetic protists in

Q18: Haptophytes<br>A) are extremely abundant in inland waters,

Q19: Chlorophytes and phaeophytes share all of the