Brooks Biodiversity
Biodiversity Unit 4 Exam Questions
with Correct Answers 2026 Update
Phylum Annelida -Correct Answer ✔-segmented worms
Phylum Annelida
Vermiform -Correct Answer ✔-worm shape body
Phylum Annelida
Homonomous w/ metameres -Correct Answer ✔-AKA Metamerism
segments looks like identical rings
Phylum Annelida
setae -Correct Answer ✔-AKA Chaetae
stiff bristle branching off, function in locomotion
(chitin used to make a worm)
Phylum Annelida
Parapodia -Correct Answer ✔-setae come out of the parapodia (leg)
Phylum Annelida
closed circulation -Correct Answer ✔-5-7 hearts
Phylum Annelida
Metanephridia -Correct Answer ✔-kidneys like function
Phylum Annelida
Body form? -Correct Answer ✔-coelom
Phylum Annelida
Annual -Correct Answer ✔-ring
Phylum Annelida
Movement -Correct Answer ✔--Crawling: longitudinal and circular muscles
Brooks Biodiversity
,Brooks Biodiversity
-Swimming
Phylum Annelida
Trochophore larva -Correct Answer ✔-Annelid vs Mollusk
-same type of larva
Phylum Annelida
Characteristics -Correct Answer ✔--15,000 species
-freshwater, marine, and terrestrial
-body linear w/ fused segments
Phylum Annelida
Classifications -Correct Answer ✔-Class Ploychaeta
Class Oligochaeta
Class Hirudinea
Phylum Annelida
Class Polychaeta
Characteristics -Correct Answer ✔-"Many Setae"
-Well developed head
-Segments possess Parapodia (fleshy locomotory structures) w/ chintinous setae
-marine
Phylum Annelida
Class Polychaeta
Examples -Correct Answer ✔--Sandworms
-Tubeworms
-in coral
-Lid AKA operculum
-EX: Palalo worm AKA Palolo
-reproduce certain time of year and moon
-Prolidges
-EX: Fireworm
-setae: white stickes off claws
Phylum Annelida
Brooks Biodiversity
, Brooks Biodiversity
Class Oligochaeta -Correct Answer ✔-"Few Setae" AKA Earthworms
Poorly- developed head
-Clitellum: collar babies come out
-Respiration
-Diffusion: thur skin O2
-Hermaphordic: both male and female reproduction organs= mutual pregnancy
-Red b/c of hemoglobin: fluid in side
-Slimily: crawl through dirt, skin used in respiration
-6-7 ft long Australia
-Terrestrial and freshwater
-setae very short and few in number
Phylum Annelida
Class Oligochaeta
Hermaphordic -Correct Answer ✔-both male and female reproduction organs=
mutual pregnancy
Phylum Annelida
Class Hirudinea -Correct Answer ✔-AKA Leeches
-Blood sucking parasites (most parasites) facilitated by anesthetic (prevent pain)
and anticoagulant (stop blood clots)
-Some carnivorous
-Coelom filled w/ mesenchyme- cells back in= embryotic= cell type
-Open circulation
-Clitellum present
-Medical: for swelling 1st: insert chlgolente so blood doesn't clot 2nd: suck blood
Phylum Annelida
Class Hirudinea
Mesenchyme -Correct Answer ✔--coelom filled
-mesodermal embryonic tissue that develops into connective and skeletal tissues,
including blood and lymph
Phylum Arthropods -Correct Answer ✔-largest animal group, most successful
Phylum Arthropods
Brooks Biodiversity
Biodiversity Unit 4 Exam Questions
with Correct Answers 2026 Update
Phylum Annelida -Correct Answer ✔-segmented worms
Phylum Annelida
Vermiform -Correct Answer ✔-worm shape body
Phylum Annelida
Homonomous w/ metameres -Correct Answer ✔-AKA Metamerism
segments looks like identical rings
Phylum Annelida
setae -Correct Answer ✔-AKA Chaetae
stiff bristle branching off, function in locomotion
(chitin used to make a worm)
Phylum Annelida
Parapodia -Correct Answer ✔-setae come out of the parapodia (leg)
Phylum Annelida
closed circulation -Correct Answer ✔-5-7 hearts
Phylum Annelida
Metanephridia -Correct Answer ✔-kidneys like function
Phylum Annelida
Body form? -Correct Answer ✔-coelom
Phylum Annelida
Annual -Correct Answer ✔-ring
Phylum Annelida
Movement -Correct Answer ✔--Crawling: longitudinal and circular muscles
Brooks Biodiversity
,Brooks Biodiversity
-Swimming
Phylum Annelida
Trochophore larva -Correct Answer ✔-Annelid vs Mollusk
-same type of larva
Phylum Annelida
Characteristics -Correct Answer ✔--15,000 species
-freshwater, marine, and terrestrial
-body linear w/ fused segments
Phylum Annelida
Classifications -Correct Answer ✔-Class Ploychaeta
Class Oligochaeta
Class Hirudinea
Phylum Annelida
Class Polychaeta
Characteristics -Correct Answer ✔-"Many Setae"
-Well developed head
-Segments possess Parapodia (fleshy locomotory structures) w/ chintinous setae
-marine
Phylum Annelida
Class Polychaeta
Examples -Correct Answer ✔--Sandworms
-Tubeworms
-in coral
-Lid AKA operculum
-EX: Palalo worm AKA Palolo
-reproduce certain time of year and moon
-Prolidges
-EX: Fireworm
-setae: white stickes off claws
Phylum Annelida
Brooks Biodiversity
, Brooks Biodiversity
Class Oligochaeta -Correct Answer ✔-"Few Setae" AKA Earthworms
Poorly- developed head
-Clitellum: collar babies come out
-Respiration
-Diffusion: thur skin O2
-Hermaphordic: both male and female reproduction organs= mutual pregnancy
-Red b/c of hemoglobin: fluid in side
-Slimily: crawl through dirt, skin used in respiration
-6-7 ft long Australia
-Terrestrial and freshwater
-setae very short and few in number
Phylum Annelida
Class Oligochaeta
Hermaphordic -Correct Answer ✔-both male and female reproduction organs=
mutual pregnancy
Phylum Annelida
Class Hirudinea -Correct Answer ✔-AKA Leeches
-Blood sucking parasites (most parasites) facilitated by anesthetic (prevent pain)
and anticoagulant (stop blood clots)
-Some carnivorous
-Coelom filled w/ mesenchyme- cells back in= embryotic= cell type
-Open circulation
-Clitellum present
-Medical: for swelling 1st: insert chlgolente so blood doesn't clot 2nd: suck blood
Phylum Annelida
Class Hirudinea
Mesenchyme -Correct Answer ✔--coelom filled
-mesodermal embryonic tissue that develops into connective and skeletal tissues,
including blood and lymph
Phylum Arthropods -Correct Answer ✔-largest animal group, most successful
Phylum Arthropods
Brooks Biodiversity
