FAU BROOKS BIODIVERSITY UNIT 1 LATEST UPDATED EXAM
WITH COMPLETE DETAILED QUESTIONS AND CORRRECT
VERIFIED ANSWERS ALREADY GRADED A+
Organisms in Phylum Annelida are distinguishable by their _________ bodies.
segmented
The worm-like shape found in Annelids is known as __________.
Vermiform
Annelids have the best ________ in the world. Why is this?
Coelom, because they have a coelom in each individual segment.
Each segment found in Annelids contains ________ & ________
Metanephridia [kidneys], hearts
Because the segments of Annelids look the same, they are described as displaying
Homonomous metamerism
,Metameres are
segments found in Annelids
Annelids have which two types of muscles? This distinguishes them from which other phylum?
Longitudinal and Circular; Nematoda [only has longitudinal]; allows earthworms to crawl instead of just
thrash
Annelid blood has ________ and can be which two colors?
Hemoglobin, green or red
Trocophore Larvae
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?
Closed; first heart that is very similar to human heart
Parapodia
fleshy extensions found in annelids; used for locomotions and are living
Setae
,secretions in annelids that function for locomotion; not alive and are made of chiton
Class Oligochaeta is commonly known as the _________
Earthworm
Oligochaetes have a _______ head
undifferentiated/poorly developed head; do not need vision
Describe Class Oligochaete reproduction
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 ________
moist for respiration
Respiration in Oligochaetes occurs through
diffusion in the epidermis
Oligochaetes can get up to________ long
2 meters
, Class Polychaeta is found in which phylum
Annelida
Polychaetes have a _________ head and __________setae
well-developed head with eyes, jaws, tentacles and parapodia; many-setae
Polychaetes create_______ and _____ _______
Tubes and feathery structures
Polychaete tubes have what in common with Gastropods?
operculum
Polychaetes include
Palolo worms, Christmas tree worm, fire worms
Palolo Worms
Polychaete that somehow communicates for reproduction, have massive orgy [proglottids hold
reproductive material]; some think they are aphrodesiacs
WITH COMPLETE DETAILED QUESTIONS AND CORRRECT
VERIFIED ANSWERS ALREADY GRADED A+
Organisms in Phylum Annelida are distinguishable by their _________ bodies.
segmented
The worm-like shape found in Annelids is known as __________.
Vermiform
Annelids have the best ________ in the world. Why is this?
Coelom, because they have a coelom in each individual segment.
Each segment found in Annelids contains ________ & ________
Metanephridia [kidneys], hearts
Because the segments of Annelids look the same, they are described as displaying
Homonomous metamerism
,Metameres are
segments found in Annelids
Annelids have which two types of muscles? This distinguishes them from which other phylum?
Longitudinal and Circular; Nematoda [only has longitudinal]; allows earthworms to crawl instead of just
thrash
Annelid blood has ________ and can be which two colors?
Hemoglobin, green or red
Trocophore Larvae
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?
Closed; first heart that is very similar to human heart
Parapodia
fleshy extensions found in annelids; used for locomotions and are living
Setae
,secretions in annelids that function for locomotion; not alive and are made of chiton
Class Oligochaeta is commonly known as the _________
Earthworm
Oligochaetes have a _______ head
undifferentiated/poorly developed head; do not need vision
Describe Class Oligochaete reproduction
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 ________
moist for respiration
Respiration in Oligochaetes occurs through
diffusion in the epidermis
Oligochaetes can get up to________ long
2 meters
, Class Polychaeta is found in which phylum
Annelida
Polychaetes have a _________ head and __________setae
well-developed head with eyes, jaws, tentacles and parapodia; many-setae
Polychaetes create_______ and _____ _______
Tubes and feathery structures
Polychaete tubes have what in common with Gastropods?
operculum
Polychaetes include
Palolo worms, Christmas tree worm, fire worms
Palolo Worms
Polychaete that somehow communicates for reproduction, have massive orgy [proglottids hold
reproductive material]; some think they are aphrodesiacs
