Chapter 29

Which of the following is associated with the evolution of the coelom? (a) radial symmetry (b) tube-within-a-tube body plan (c) incomplete metamorphosis (d) bilateral symmetry (e) development of ganglia

Cephalization (a) evolved along with bilateral symmetry (b) refers to the development of a digestive system (c) is associated with radial symmetry (d) involves a concentration of excretory organs (e) first evolved in arthropods

Rudimentary cephalization, protonephridia, and auricles characterize some numbers of phylum (a) Arthropoda (b) Cnidaria (c) Platyhelminthes (d) Mollusca (e) Crustacea

Trochophore larvae are characteristic of (a) Arthropoda (b) Cnidaria (c) Platyhelminthes (d) Mollusca (e) Crustacea

Tapeworms are classified in phylum (a) Porifera (b) Cnidaria (c) Platyhelminthes (d) Ctenophora (e) Coelomata

Which of the following is not an adaptation of parasitic life? (a) production of a few well-protected eggs (b) hooks (c) suckers (d) reduced digestive system (e) intermediate host

The hydrostatic skeleton (a) results in torsion (b) permits contracting muscles to recover quickly (c) permits a greater range of movement than possible in acoelomate animals (d) is a unique characteristic of annelids (e) permits ecdysis

Which of the following is not characteristic of nemerteans (proboscis worms)? (a) large coelom (b) tube-within-a-tube body plan (c) complete digestive tube (d) muscular tube for capturing food (e) circulatory system

Which of the following characteristics is associated with phylum Mollusca? (a) mandibles (b) mantle (c) pedipalps (d) chelipeds (e) setae

Which of the following belong to phylum Mollusca? (a) gastropods and crustaceans (b) oligochaetes and polychaetes (c) chelicerates and bryozoans (d) crustaceans and nemerteans (e) gastropods and cephalopods

Which of the following belongs to Ecdysozoa? (a) mollusks (b) annelids (c) nematodes (d) nemerteans (e) lophophorates

Which of the following is not a nematode? (a) hookworm (b) trichina worm (c) Ascaris (d) leech (e) pinworm

Trilobites (a) were early mollusks (b) are members of phylum Onychophora (c) are characterized by parapodia and setae (d) were early arthropods (e) are an evolutionary link between annelids and arthropods

The correct sequence in insect complete metamorphosis is (a) \(\operatorname{egg} \longrightarrow\) immature form \(\longrightarrow\) adult (b) \(\operatorname{egg} \longrightarrow\) trochophore larva \(\longrightarrow\) veliger larva \(\longrightarrow\) adult (c) \(\operatorname{egg} \longrightarrow\) pupa \(\longrightarrow\) larva \(\longrightarrow\) (e) adult \(\longrightarrow\) adult (d) \(\mathrm{egg} \longrightarrow\) larva \(\longrightarrow\) pupa \(\longrightarrow\) adult larva \(\longrightarrow\) egg \(\longrightarrow\) pupa

Which of the following is characteristic of insects? (a) biramous appendages (b) mandibles (c) chelicerae (d) eight legs (e) two pairs of antennae

Which of the following is not characteristic of arthropods? (a) exoskeleton (b) trochophore larva (c) paired, jointed appendages (d) chitin (e) segmentation

Spiders are characterized by (a) mandibles and maxillae (b) six pairs of legs on the abdomen (c) one pair of antennae (d) biramous appendages (e) chelicerae and pedipalps