Biodiversity Unit Iv Final Exam
Brooks Fau Exam Study Guide –
Practice Questions with Verified
Answers. GRADED A+. Latest
2026/2027 Update
Organisms in Phylum Annelida are distinguishable by their _________ bodies. -
- answer✔✔ - segmented
The worm-like shape found in Annelids is known as __________. - answer✔✔ -
Vermiform
Annelids have the best ________ in the world. Why is this? - answer✔✔ -
Coelom, because they have a coelom in each individual segment.
Each segment found in Annelids contains ________ & ________ - answer✔✔ -
Metanephridia [kidneys], hearts
,Because the segments of Annelids look the same, they are described as
displaying - answer✔✔ - Homonomous metamerism
Metameres are - answer✔✔ - segments found in Annelids
Annelids have which two types of muscles? This distinguishes them from which
other phylum? - answer✔✔ - Longitudinal and Circular; Nematoda [only has
longitudinal]; allows earthworms to crawl instead of just thrash Annelid blood
has ________ and can be which two colors? - answer✔✔ - Hemoglobin, green or
red
Trocophore Larvae - answer✔✔ - Found in both annelids and mollusks; suggests
link between the two phyla.
What type of circulatory system do annelids have? What is unique about their
hearts? - answer✔✔ - Closed; first heart that is very similar to human heart
Parapodia - answer✔✔ - fleshy extensions found in annelids; used for
locomotions and are living
,Setae - answer✔✔ - secretions in annelids that function for locomotion; not
alive and are made of chiton
Class Oligochaeta is commonly known as the _________ - answer✔✔ -
Earthworm
Oligochaetes have a _______ head - answer✔✔ - undifferentiated/poorly
developed head; do not need vision
Describe Class Oligochaete reproduction - answer✔✔ - are typically
monoecious/hermaphroditic; pair up anti parallel; fertilization occurs in the
clitellum and once fertilized they slip clitellum off and it serves as a cocoon for
developing embryos
Oligochaete epidermis needs to remain ________ - answer✔✔ - moist for
respiration
Respiration in Oligochaetes occurs through - answer✔✔ - diffusion in the
epidermis
Oligochaetes can get up to________ long - answer✔✔ - 2 meters
, Class Polychaeta is found in which phylum - answer✔✔ - Annelida
Polychaetes have a _________ head and __________setae - answer✔✔ -
welldeveloped head with eyes, jaws, tentacles and parapodia; many-setae
Polychaetes create_______ and _____ _______ - answer✔✔ - Tubes and
feathery structures
Polychaete tubes have what in common with Gastropods? - answer✔✔ -
operculum
Polychaetes include - answer✔✔ - Palolo worms, Christmas tree worm, fire
worms
Palolo Worms - answer✔✔ - Polychaete that somehow communicates for
reproduction, have massive orgy [proglottids hold reproductive material]; some
think they are aphrodesiacs
Class Hirudinea is in which Phylum - answer✔✔ - Annelida
Class Hirudinea includes organisms commonly known as - answer✔✔ - leeches
Brooks Fau Exam Study Guide –
Practice Questions with Verified
Answers. GRADED A+. Latest
2026/2027 Update
Organisms in Phylum Annelida are distinguishable by their _________ bodies. -
- answer✔✔ - segmented
The worm-like shape found in Annelids is known as __________. - answer✔✔ -
Vermiform
Annelids have the best ________ in the world. Why is this? - answer✔✔ -
Coelom, because they have a coelom in each individual segment.
Each segment found in Annelids contains ________ & ________ - answer✔✔ -
Metanephridia [kidneys], hearts
,Because the segments of Annelids look the same, they are described as
displaying - answer✔✔ - Homonomous metamerism
Metameres are - answer✔✔ - segments found in Annelids
Annelids have which two types of muscles? This distinguishes them from which
other phylum? - answer✔✔ - Longitudinal and Circular; Nematoda [only has
longitudinal]; allows earthworms to crawl instead of just thrash Annelid blood
has ________ and can be which two colors? - answer✔✔ - Hemoglobin, green or
red
Trocophore Larvae - answer✔✔ - Found in both annelids and mollusks; suggests
link between the two phyla.
What type of circulatory system do annelids have? What is unique about their
hearts? - answer✔✔ - Closed; first heart that is very similar to human heart
Parapodia - answer✔✔ - fleshy extensions found in annelids; used for
locomotions and are living
,Setae - answer✔✔ - secretions in annelids that function for locomotion; not
alive and are made of chiton
Class Oligochaeta is commonly known as the _________ - answer✔✔ -
Earthworm
Oligochaetes have a _______ head - answer✔✔ - undifferentiated/poorly
developed head; do not need vision
Describe Class Oligochaete reproduction - answer✔✔ - are typically
monoecious/hermaphroditic; pair up anti parallel; fertilization occurs in the
clitellum and once fertilized they slip clitellum off and it serves as a cocoon for
developing embryos
Oligochaete epidermis needs to remain ________ - answer✔✔ - moist for
respiration
Respiration in Oligochaetes occurs through - answer✔✔ - diffusion in the
epidermis
Oligochaetes can get up to________ long - answer✔✔ - 2 meters
, Class Polychaeta is found in which phylum - answer✔✔ - Annelida
Polychaetes have a _________ head and __________setae - answer✔✔ -
welldeveloped head with eyes, jaws, tentacles and parapodia; many-setae
Polychaetes create_______ and _____ _______ - answer✔✔ - Tubes and
feathery structures
Polychaete tubes have what in common with Gastropods? - answer✔✔ -
operculum
Polychaetes include - answer✔✔ - Palolo worms, Christmas tree worm, fire
worms
Palolo Worms - answer✔✔ - Polychaete that somehow communicates for
reproduction, have massive orgy [proglottids hold reproductive material]; some
think they are aphrodesiacs
Class Hirudinea is in which Phylum - answer✔✔ - Annelida
Class Hirudinea includes organisms commonly known as - answer✔✔ - leeches
