You annelidsthey are animals with a body segmented into rings, they belong to the Phylum Annelida and are classified into three classes, based mainly on the amount of bristles they have.
Thus, annelids are classified as: oligochaetes, polychaetes and hirudines.
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We prepared a list of exercises on classification of annelids so that you can test your knowledge about the three classes of these animals.
You can consult the feedback and save this list of exercises in PDF at the end of the post!
1) (MED. – Taubaté) Segmented marine, limnic and terrestrial worms, triploblastic, coelomate, with metameric segmentation and related to arthropods. This description is about:
a) nematodes.
b) Cestoids.
c) annelids.
d) flatworms.
e) coelenterates.
2) (FUVEST) An animal with complete digestive tract, closed circulatory system, blood with hemoglobin and hermaphrodite can be:
a) an earthworm.
b) a flatworm.
c) a cockroach.
d) a snail.
e) a roundworm.
3) (FCC) The circulatory system of flatworms, nematodes, molluscs and annelids is, respectively:
a) open, open, closed and closed.
b) absent, absent, closed and closed.
c) absent, absent, open and closed.
d) open, closed, absent and open.
e) absent, closed, open and closed.
4) (FAAP) In the not too distant past, a type of animal was sold in barbershops and apothecaries for bleeding. It was believed that the bloodletting performed by these animals could cure a wide range of ailments that afflicted a person. What animal was used and to which phylum does it belong?
a) Slug, from the phylum Mollusca.
b) Earthworm, from the phylum Anelida.
c) Same, from the phylum Artropoda.
d) Leeches, from the Anelida phylum.
e) Amarelão, from the phylum Asquielminte.
5) Annelids are organisms that stand out for having a body divided into rings. These animals also have some characteristics that allow classifying them into three classes:
a) gastropods, bivalves and cephalopods.
b) centipedes, millipedes and crustaceans.
c) hydrozoans, scyphozoans and anthozoans.
d) polychaetes, oligochaetes and hirudines.
e) asteroids, crinoids and holothuroids.
6) Next, it is possible to observe several representatives of the Animal Kingdom. Among these representatives, mark the only annelid belonging to the class Hirudinea.
a) Earthworm.
b) Lacraia.
c) Snake louse.
d) Leech.
e) Polychaete.
7) Earthworms are annelids with well-known characteristics, such as well-developed segmentation. These animals do not have gills, are hermaphrodites and have a small amount of bristles. Thus, earthworms can be classified as:
a) gastropods.
b) oligochaetes.
c) cephalopods.
d) polychaetes.
e) hirudines.
8) (UNISA) The intestine of the earthworm presents internally, in its posterior part, a fold called typhlosole, whose function is:
a) increase the nutrient absorption surface.
b) excrete ingested plant debris.
c) shredding vegetable waste.
d) store the crushed food.
e) produce digestive enzymes.
9) The alternatives below mention some important characteristics attributed to the group of oligochaetes. Analyze each of these alternatives and mark the one that does not present a true statement about this group.
a) Oligochaetes have few bristles.
b) Oligochaetes are found only in freshwater and terrestrial environment.
c) Earthworms are important representatives of this group.
d) Oligochaetes do not have parapodia.
e) It is possible to observe the clitellum in oligochaetes.
10) A Biology student identified a marine organism that stood out for the presence of structures similar to oars, from which several bristles departed. When showing it to his teacher, the student was informed that it was an annelid of the class:
a) Polychaeta.
b) Holothuroidea.
c) Hirudinea.
d) Crinoidea.
e) Oligocheta.
1 — c
2 — the
3 — c
4 — d
5 — d
6 — d
7 — b
8 — the
9 — b
10 — the
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