Zoology UTA Exam 4 2024/2025 Exam
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A giant earthworm - 🧠ANSWER ✔✔The picture of Roelke in a Rwandan
cloud forest shows him holding?
Phylum Annelida, Echiura, and Sipuncula - 🧠ANSWER ✔✔-Coelomate
protostomes; coelom through schizocoely
-Spiral mosaic cleavage
Phylum Annelida - 🧠ANSWER ✔✔-Latin "anneulus= little ring"
-Earthworms, leeches, polychaete worms
-Divided into segments called *metameres*
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STATEMENT. ALL RIGHTS RESERVED
,-Rings called *annuli*
-Some have chitinous bristles called *setae*
-Worldwide, nearly all habitats
Annelid Characteristics - 🧠ANSWER ✔✔-Unique head, parapodia
ancestral
-Bilateral symmetry, triploblastic
-Epithelium secretes moist cuticle
-Digestive system complete and not segmented
-Asexual reproduction by fission & fragmentation
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STATEMENT. ALL RIGHTS RESERVED
,-Typically a pair of kidney like organs per segment for waste removal
-Closed circulatory system
Annelid Basic Body Plan - 🧠ANSWER ✔✔-Usually a 2 part head:
*prostomium & peristomium*
-Terminal portion called a *pygidium*
-New segments just in front of the pygidium (older segments at the front)
-Each segment usually with its own circulatory, respiratory, nervous, and
excretory structures
-Except for leeches, coelom filled with fluid to make a hydrostatic skeleton
Class Polychaeta (Phylum Annelida) - 🧠ANSWER ✔✔-Greek "polys= many
and chaite= long hair"
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
, -"Bristle worms"
-Most marine, up to 3m (10ft) long
-live under rocks in crevices, shells, in sediment, a few planktonic
-Significant component of marine food chains
Photo: Christmas Tree/ Feather Duster worm
Polychaete Form & Function pt.1 - 🧠ANSWER ✔✔-Well differentiated head
w/ good sense organs, paired parapodia on most segments
-Many setae
-Usually divided into sedentary and mobile forms
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 4
STATEMENT. ALL RIGHTS RESERVED
Questions with Detailed Verified
Answers (100% Correct Answers) |
Already Graded A+
A giant earthworm - 🧠ANSWER ✔✔The picture of Roelke in a Rwandan
cloud forest shows him holding?
Phylum Annelida, Echiura, and Sipuncula - 🧠ANSWER ✔✔-Coelomate
protostomes; coelom through schizocoely
-Spiral mosaic cleavage
Phylum Annelida - 🧠ANSWER ✔✔-Latin "anneulus= little ring"
-Earthworms, leeches, polychaete worms
-Divided into segments called *metameres*
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,-Rings called *annuli*
-Some have chitinous bristles called *setae*
-Worldwide, nearly all habitats
Annelid Characteristics - 🧠ANSWER ✔✔-Unique head, parapodia
ancestral
-Bilateral symmetry, triploblastic
-Epithelium secretes moist cuticle
-Digestive system complete and not segmented
-Asexual reproduction by fission & fragmentation
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
,-Typically a pair of kidney like organs per segment for waste removal
-Closed circulatory system
Annelid Basic Body Plan - 🧠ANSWER ✔✔-Usually a 2 part head:
*prostomium & peristomium*
-Terminal portion called a *pygidium*
-New segments just in front of the pygidium (older segments at the front)
-Each segment usually with its own circulatory, respiratory, nervous, and
excretory structures
-Except for leeches, coelom filled with fluid to make a hydrostatic skeleton
Class Polychaeta (Phylum Annelida) - 🧠ANSWER ✔✔-Greek "polys= many
and chaite= long hair"
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
, -"Bristle worms"
-Most marine, up to 3m (10ft) long
-live under rocks in crevices, shells, in sediment, a few planktonic
-Significant component of marine food chains
Photo: Christmas Tree/ Feather Duster worm
Polychaete Form & Function pt.1 - 🧠ANSWER ✔✔-Well differentiated head
w/ good sense organs, paired parapodia on most segments
-Many setae
-Usually divided into sedentary and mobile forms
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 4
STATEMENT. ALL RIGHTS RESERVED
