Annelida: Phylum, Classes, and Allied Taxa

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Members of phyla Echiura and Sipuncula are ______ marine animals with unsegmented bodies.

benthic

Annelids are ______ coelomates in superphylum Lophotrochozoa.

protostome

Annelids have bodies composed of a series of fused ______.

rings

The evolutionary innovation shown by annelids is ______ (metamerism).

segmentation Signup and view all the answers

Many annelids have ______ bristles called setae.

chitinous Signup and view all the answers

Segmentation evolved separately in annelids, ______, and chordates.

arthropods Signup and view all the answers

Polychaetes are mostly and mostly .

marine, benthic Signup and view all the answers

Some polychaetes are ______ and live under rocks, burrow into sediment, or build their own tubes.

benthic Signup and view all the answers

Sedentary forms often have elaborate devices for ______ and respiration.

feeding Signup and view all the answers

Gonads are temporary structures in ______.

polychaetes Signup and view all the answers

Many polychaetes have respiratory ______ such as Hemoglobin, chlorocruorin or hemerythrin.

pigments Signup and view all the answers

Coelomic fluid enters the ______ through the nephrostome.

nephridial duct Signup and view all the answers

The class Oligochaeta includes ______ and many freshwater worms.

earthworms Signup and view all the answers

[Blank] help prevent slipping while burrowing.

Setae Signup and view all the answers

Earthworms can burrow deep underground and remain dormant in a ______ chamber during dry weather.

slime Signup and view all the answers

An earthworm can ingest its own weight in soil every ______ hours.

24 Signup and view all the answers

When mating, two worms are held together by ______ secreted by the clitellum.

mucus Signup and view all the answers

Development occurs inside the ______ and young worms hatch out.

cocoon Signup and view all the answers

Food is stored in a thin-walled ______.

crop Signup and view all the answers

Each somite, except the 1st three and terminal one, have a pair of ______.

metanephridia Signup and view all the answers

A ______ funnel, the nephrostome, draws in wastes and leads through the septum.

ciliated Signup and view all the answers

Coelomic fluid and blood transport food, wastes, and ______ gases.

respiratory Signup and view all the answers

Neurosecretory cells in brain and ganglia secrete ______.

neurohormones Signup and view all the answers

Members of Class Oligochaeta ______ bright light.

avoid Signup and view all the answers

Some annelids lack ______ vessels and coelomic sinuses serve as their only vascular system.

blood Signup and view all the answers

Leeches are highly sensitive to ______ associated with the presence of prey.

stimuli Signup and view all the answers

Those that feed on mammals are attracted by ______.

warmth Signup and view all the answers

Coelomic fluid would have acted as a ______ fluid and reduce need for flame cells everywhere.

circulatory Signup and view all the answers

The selective advantage of a segmented body for annelids appears to lie in the ______ of burrowing.

efficiency Signup and view all the answers

Molecular analyses place sipunculids and echiurans closely related to the ______.

annelids Signup and view all the answers

Annelida: Phylum, Classes, and Allied Taxa

Podcast Beta

Questions and Answers

Members of phyla Echiura and Sipuncula are ______ marine animals with unsegmented bodies.

Annelids are ______ coelomates in superphylum Lophotrochozoa.

Annelids have bodies composed of a series of fused ______.

The evolutionary innovation shown by annelids is ______ (metamerism).

Many annelids have ______ bristles called setae.

Segmentation evolved separately in annelids, ______, and chordates.

Polychaetes are mostly and mostly .

Some polychaetes are ______ and live under rocks, burrow into sediment, or build their own tubes.

Sedentary forms often have elaborate devices for ______ and respiration.

Gonads are temporary structures in ______.

Many polychaetes have respiratory ______ such as Hemoglobin, chlorocruorin or hemerythrin.

Coelomic fluid enters the ______ through the nephrostome.

The class Oligochaeta includes ______ and many freshwater worms.

[Blank] help prevent slipping while burrowing.

Earthworms can burrow deep underground and remain dormant in a ______ chamber during dry weather.

An earthworm can ingest its own weight in soil every ______ hours.

When mating, two worms are held together by ______ secreted by the clitellum.

Development occurs inside the ______ and young worms hatch out.

Food is stored in a thin-walled ______.

Each somite, except the 1st three and terminal one, have a pair of ______.

A ______ funnel, the nephrostome, draws in wastes and leads through the septum.

Coelomic fluid and blood transport food, wastes, and ______ gases.

Neurosecretory cells in brain and ganglia secrete ______.

Members of Class Oligochaeta ______ bright light.

Some annelids lack ______ vessels and coelomic sinuses serve as their only vascular system.

Leeches are highly sensitive to ______ associated with the presence of prey.

Those that feed on mammals are attracted by ______.

Coelomic fluid would have acted as a ______ fluid and reduce need for flame cells everywhere.

The selective advantage of a segmented body for annelids appears to lie in the ______ of burrowing.

Molecular analyses place sipunculids and echiurans closely related to the ______.

More Quizzes Like This

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Higher Invertebrate Metazoans: Annelida and Mollusca

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Earthworm Anatomy and Reproduction

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Annelida: Phylum, Classes, and Allied Taxa

Podcast Beta

Questions and Answers

Members of phyla Echiura and Sipuncula are ______ marine animals with unsegmented bodies.

Annelids are ______ coelomates in superphylum Lophotrochozoa.

Annelids have bodies composed of a series of fused ______.

The evolutionary innovation shown by annelids is ______ (metamerism).

Many annelids have ______ bristles called setae.

Segmentation evolved separately in annelids, ______, and chordates.

Polychaetes are mostly ______ and mostly ______.

Some polychaetes are ______ and live under rocks, burrow into sediment, or build their own tubes.

Sedentary forms often have elaborate devices for ______ and respiration.

Gonads are temporary structures in ______.

Many polychaetes have respiratory ______ such as Hemoglobin, chlorocruorin or hemerythrin.

Coelomic fluid enters the ______ through the nephrostome.

The class Oligochaeta includes ______ and many freshwater worms.

[Blank] help prevent slipping while burrowing.

Earthworms can burrow deep underground and remain dormant in a ______ chamber during dry weather.

An earthworm can ingest its own weight in soil every ______ hours.

When mating, two worms are held together by ______ secreted by the clitellum.

Development occurs inside the ______ and young worms hatch out.

Food is stored in a thin-walled ______.

Each somite, except the 1st three and terminal one, have a pair of ______.

A ______ funnel, the nephrostome, draws in wastes and leads through the septum.

Coelomic fluid and blood transport food, wastes, and ______ gases.

Neurosecretory cells in brain and ganglia secrete ______.

Members of Class Oligochaeta ______ bright light.

Some annelids lack ______ vessels and coelomic sinuses serve as their only vascular system.

Leeches are highly sensitive to ______ associated with the presence of prey.

Those that feed on mammals are attracted by ______.

Coelomic fluid would have acted as a ______ fluid and reduce need for flame cells everywhere.

The selective advantage of a segmented body for annelids appears to lie in the ______ of burrowing.

Molecular analyses place sipunculids and echiurans closely related to the ______.

More Quizzes Like This

Master the Art of Organizing Organisms

Higher Invertebrate Metazoans: Annelida and Mollusca

Invertebrate Phyla: Mollusks, Annelids, and Arthropods

Earthworm Anatomy and Reproduction

Polychaetes are mostly and mostly .