Quiz #2: Lower Invertebrates
This quiz covers LU2: Lower invertebrates (Phylum Ctenophora - Annelida)
- 1.Ctenophores posess eight comb rows composed of long, fused ______.
- 2.Ctenophores do not possess nematocysts, instead they have adhesive prey capturing cells called _________.
- 3.In Ctenophores, what are used for locomotion?
- A.
Ctene
- B.
Costae
- C.
Apical sense
- D.
Pharynx
- 4.The free-living platyhelminths are usually considered the most primitive bilateral animals and the 1st group to have evolved a true ______________.
- 5.Flatworms osmoregulates through a specialized organ called __________.
- A.
Syncytial layer
- B.
Microvillus
- C.
Tegument
- D.
Protonephridia
- 6.Light-sensitive sense organs in the flatworms are called ______.
- A.
Rheoreceptors
- B.
Ocelli
- C.
Scolex
- D.
Proglottids
- 7.The human liver fluke, Clonorchis sinensis, is common in China, and can cause cirrhosis of the liver and death.
- A.
True
- B.
False
- 8.Members in the Phylum Nematoda possess a pair of lateral sensory organs called _______.
- 9.Most nematodes are _______. Males are smaller than females and may have an accessory _______ structure.
- A.
Monoceious; amoeboid
- B.
Asexual; amoeboid
- C.
Dioecious; copulatory
- D.
Hermaphroditic; copulatory
- 10.Which is NOT TRUE about the cuticle functions in nematodes?
- A.
As a hook to burrow into muscle tissue forming cysts for parasitic nematodes.
- B.
As a barrier and provides protection.
- C.
As a sensory array where it can detects changes in the environment.
- D.
As a hydrostatic skeleton to help in locomotion.
- 11.A rasping radula is characteristic of all mollusks EXCEPT _________.
- A.
Bivalves
- B.
Gastropods
- C.
Cephalopods
- D.
Chitons
- 12.The only class of mollusk to have a closed circulatory system includes the _______.
- A.
Brachiopod
- B.
Snail
- C.
Oyster
- D.
Octopus
- 13.The leech characteristic, _______________ , shared with oligochaetes is part of the evidence that leeches evolved from oligochaetes.
- A.
Suckers
- B.
Metameric segmentation
- C.
Clitellum
- D.
Parapodia
- 14.Sexually, earthworms (oligochaetes) are _____________.
- A.
Separate sexed
- B.
Hermaphroditic but not self-fertilizing
- C.
Parthenogenic
- D.
Hermaphroditic and self-fertilizing
- 15.Polychaetes (Annelida) and Mollusca shared a characteristic by having a trochophore larvae during their first larval stage.
- A.
True
- B.
False
Questions: 15 | Attempts: 2084 | Last updated: Mar 22, 2022
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