______ is the segment arrangement of body parts.
1) Metamerism
2) Triploblastism
3) Tagmatization
4) Serialism
5) Cephalization Correct Answers Metamerism
______ preadapted insects for success on land. 1) Biramous
appendages 2) Walking leg 3) Exoskeleton 4) Gills 5)
Mandibles Correct Answers Exoskeleton
__________ are sensory pits on the heads of annelids that
function as chemoreceptors for food detection.
1) Olfactors
2) Auricles
3) Statocysts
4) Phasmids
5) Nuchal organs Correct Answers Nuchal organs
__________ are the excretory organs of most polychaetes.
1) Chloragogues
2) Metanephridia
3) Osphradia
4) Nuchal glands
5) Ommatidia Correct Answers Metanephridia
,__________ between larval and adult stages of arthropods
reduces competition for resources.
1) asexual reproduction
2) regeneration
3) metamorphosis
4) ecdysis
5) parthenogenesis Correct Answers Metamorphosis
__________ increase the surface area for respiratory exchange
in some polychaetes.
1) Parapodial gills
2) Dermal branchiae
3) Annuli
4) Septa
5) Mesenteries Correct Answers Parapodial gills
__________ is a condition in which cells, or the nuclei in
syncytia, are constant in number for the entire animal, and for a
given organ for all members of the species.
1) Neoteny
2) Eutely
3) Protandry
4) Autotomy
5) Protogyny Correct Answers Eutely
__________ sense physical displacement of body parts.
1) Mechanoreceptors
,2) Tympanal organs
3) Ommatidia
4) Exteroceptors
5) Nociceptors Correct Answers Mechanoreceptors
A feature that does not characterize annelids is _______.
1) ventral nerve cord
2) bilateral symmetry
3) a complete digestive tract
4) an acoelomate condition
5) triploblastic organization Correct Answers An acoelomate
condition
A filarial worm that infects dogs, particularly common in the
United States is ______.
1) pinworms
2) mange
3) ringworm
4) heartworm
5) tapeworms Correct Answers Heartworm
A human condition caused by filarial worms is called ______.
1) elephantiasis
2) trichinosis
3) brucellosis
4) sclerosis
5) dermatitis Correct Answers Elephantiasis
, A pseudocoelom lacks _______.
1) peritoneum and mesenteries
2) muscles
3) a digestive tract
4) excretory organs
5) reproductive organs Correct Answers Peritoneum and
mesenteries
A repellent called ______ is produced by the repungnatorial
glands of millipedes.
1) carbon disulfide
2) formic acid
3) carbonic anhydrase
4) hydrogen cyanide
5) sulfur dioxide Correct Answers Hydrogen cyanide
Adult barnacles have an unusual lifestyle because they are
_______.
1) motile
2) sessile
3) predatory
4) free-swimming
5) dioecious Correct Answers Sessile
All of the following have a cuticle that is molted except one.
Select the exception.
1) Loricifera