A) Spiders have a cephalothorax and abdomen;insects have a head,a thorax,and an abdomen.
B) Spiders and insects have a tracheal respiration system.
C) Spiders are strictly carnivorous;insects can be carnivorous or herbivorous depending on the species.
D) Spiders and insects have open circulatory systems.
E) Spiders do not have wings;many insects do have wings.
Correct Answer
verified
Short Answer
Correct Answer
verified
Multiple Choice
A) lophophorates
B) gastropods
C) cephalopods
D) annelids
E) leeches
Correct Answer
verified
Multiple Choice
A) antennae (1 pair) .
B) walking legs (4 pair) .
C) chelicerae (1 pair) .
D) pedipalps (1 pair) .
E) cephalothorax and abdomen.
Correct Answer
verified
Multiple Choice
A) mites.
B) crustaceans.
C) horseshoe crabs.
D) insects.
E) chelicerates.
Correct Answer
verified
Multiple Choice
A) cephalothorax.
B) fused corpora.
C) headless mite.
D) larval instar.
E) thoracotomy.
Correct Answer
verified
Multiple Choice
A) trochophores.
B) spermatophores.
C) lophophores.
D) chromatophores.
E) phytophores.
Correct Answer
verified
Multiple Choice
A) squid.
B) oyster.
C) chiton.
D) octopus.
E) snail.
Correct Answer
verified
Multiple Choice
A) arteries.
B) cells of the cortex.
C) circulatory system.
D) lungs.
E) trachea and tracheoles.
Correct Answer
verified
Multiple Choice
A) planulae.
B) polyps.
C) miracidia.
D) zoecia.
E) trochophores.
Correct Answer
verified
Multiple Choice
A) muscles to swim,crawl,and burrow.
B) ganglia to respond to light and respond to other environmental cues.
C) circulatory,excretory,and neural elements in each segment.
D) setae in each segment.
E) adductor muscles.
Correct Answer
verified
Multiple Choice
A) they are the most familiar echinoderms.
B) they are the most important predators in many marine ecosystems.
C) they have a pigmented epidermis.
D) they are the only echinoderms that are fully sessile.
E) they are abundant in the intertidal zonE.
Correct Answer
verified
Short Answer
Correct Answer
verified
Multiple Choice
A) Possession of a lophophore shows that bryozoans are closely related to brachiopods.
B) The zoecium of the bryozoans anchors it to the substrate.
C) Bryozoans are colonial and include both freshwater and marine forms.
D) During development of bryozoans,the anus forms from the blastopore.
E) Within a colony,individual bryozoans can be specialized to perform different functions.
Correct Answer
verified
Multiple Choice
A) lophophorates
B) gastropods
C) cephalopods
D) annelids
E) leeches
Correct Answer
verified
Short Answer
Correct Answer
verified
Multiple Choice
A) Polyplacophora-chitons
B) Gastropoda-slugs
C) Bivalvia-snails
D) Cephalopoda-nautilus
E) Gastropoda-nudibranchs
Correct Answer
verified
Multiple Choice
A) a carapace,a dorsal cephalothorax shield.
B) a ventral line of appendages,swimmerets.
C) flattened uropods form a paddle at the end of the abdomen.
D) a tail spine,telson.
E) cheliceraE.
Correct Answer
verified
Multiple Choice
A) bilateral symmetry.
B) coelomic body architecture.
C) jointed appendages.
D) segmentation.
E) three primary types of tissues.
Correct Answer
verified
Multiple Choice
A) sea cucumbers.
B) brittle stars.
C) sand dollars.
D) sea squirts.
E) sea daisies.
Correct Answer
verified
Showing 1 - 20 of 106
Related Exams