From your textbook visual connections questions. Which of the following statements about insects is false? Insects have both dorsal and ventral blood vessels. Insects have spiracles, openings that allow air to enter into the tracheal system. The trachea is part of the digestive system. Most insects have a well-developed digestive system with a mouth, crop, and intestine.

From your textbook review questions. Which one of these characteristics is present in land plants and not in Charales? alternation of generations flagellated sperm phragmoplasts plasmodesmata

From your textbook review questions. A mantle and mantle cavity are present in: phylum Echinodermata. phylum Adversoidea. phylum Mollusca. phylum Nemertea.

From your textbook visual connections questions. Which of the following statements about the fern life cycle is false? Sporangia produce haploid spores. The sporophyte grows from a gametophyte. The sporophyte is diploid and the gametophyte is haploid. Sporangia form on the underside of the gametophyte.

From your textbook review questions. During embryonic development, unique cell layers develop into specific groups of tissues or organs during a stage called ________. the blastula stage the germ layer stage the gastrula stage the organogenesis stage

From your textbook review questions. Frogs belong to which order? Anura Urodela Caudata Apoda

From your textbook review questions. The circulatory fluid in echinoderms is _____. blood mesohyl water saline

From your textbook review questions. Flies are_______. chelicerates hexapods arachnids crustaceans

From your textbook review questions. Which group of flatworms are primarily ectoparasites of fish? monogeneans trematodes cestodes turbellarians

From your textbook review questions. Hagfish, lampreys, sharks, and tuna are all chordates that can also be classified into which group? Craniates Vertebrates Cartilaginous fish Cephalochordata