From your textbook review questions. The embryonic development in nematodes can have up to __________ larval stages. one two three four

From your textbook review questions. Cubozoans are ________. polyps medusoids polymorphs sponges

From your textbook visual connections questions. Which of the following consist of prokaryotic cells? bacteria and fungi archaea and fungi protists and animals bacteria and archaea

From your textbook review questions. Which of the following is not possible? radially symmetrical diploblast diploblastic eucoelomate protostomic coelomate bilaterally symmetrical deuterostome

From your textbook review questions. Which of the following periods is the earliest during which animals may have appeared? Ordovician period Cambrian period Ediacaran period Cryogenian period

From your textbook review questions. Most sponge body plans are slight variations on a simple tube-within-a-tube design. Which of the following is a key limitation of sponge body plans? Sponges lack the specialized cell types needed to produce more complex body plans. The reliance on osmosis/diffusion requires a design that maximizes the surface area to volume ratio of the sponge. Choanocytes must be protected from the hostile exterior environment. Spongin cannot support heavy bodies.

From your textbook visual connections questions. Which of the following statements about common features of chordates is true? The dorsal hollow nerve cord is part of the chordate central nervous system. In vertebrate fishes, the pharyngeal slits become the gills. Humans are not chordates because humans do not have a tail. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.

From your textbook review questions. The nematode cuticle contains _____. glucose skin cells chitin nerve cells

From your textbook review questions. The sister taxon of the Chordata is the _____. Mollusca Arthropoda Ambulacraria Rotifera

From your textbook review questions. Stomata appear in which group of plants? Charales liverworts hornworts mosses