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QUESTION 55 Most mollusks have an open circulatory system, but some mollusks have a closed circulatory system, which is more efficient in delivering blood (oxygen) to body tissues. Which of the following does NOT have a closed circulatory system, but has an open circulatory system? A. squid B. octopus C. cuttlefish D. snail QUESTION 56 An example of an animal of the class Oligochaeta (Phylum Annelida) is the A. leech B. polychaete, which is very abundant in the ocean C. garden slug D. earthworm QUESTION 57 What is the excretory organ that is found in earthworms? A. flame cells B. nephridia C. Malpighian tubules D. tiny kidneys QUESTION 58 Snails have a "rasp-like" mouth that scrapes food into the digestive tract. This structure is called the A. radula B. planula C. gastrula D. lophophore QUESTION 59 A recognizable "clump" of nervous tissue that can be referred to as a brain first appears in which group of animals? A. clams B. snails C. sea cucumbers D. earthworms QUESTION 60 Arthropods have an exoskeleton made of this substance... A. silica B. collagen C. chitin D. cellulose QUESTION 61 Latrodectus hesperus is the scientific name for A. medical leech B. black widow spider C. termite D. common housefly QUESTION 62 This arthropod can produce cyanide gas as a defense mechanism. A. trap-door spider B. water flea C. aphid D. millipede QUESTION 63 What is the muscle that "curls" the abdomen of a crustacean, enabling it to swim, or rapidly flip itself backward out of reach of predators? (This is the big muscle that you eat when you eat lobster, or shrimp, or crayfish "tails") A. flexor muscle B. extensor muscle C. adductor muscle D. longitudinal muscle QUESTION 64 All of the following arthropods (insects) have wings except A. "true bugs" B. ants C. fleas D. praying mantis QUESTION 65 The three phyla (Ectoprocta, Brachiopoda, Phoronida) have which of the following features in common? A. lophophore B. nephridia C. radula D. setae QUESTION 66 Trochophores, the free-swimming larvae of many mollusks, are propelled through the water by A. flagella B. cilia C. flame cells D. nephridia QUESTION 67 Radula modification allowed all of the following functions in gastropods except A. scraping algae off rocks (and aquarium sides) B. eating vegetation (especially cutting off soft stems of plants at ground level) C. boring holes in other mollusk shells D. protecting themselves with stinging nematocysts QUESTION 68 Which of the following organs found in cephalopods (octopus) resemble those of the vertebrates? A. arms, tentacles B. functioning kidneys C. eyes D. digestive tissues, glands, and intestines QUESTION 69 Annelids possess all of the following except A. longitudinal and circular muscles for movement B. ganglia to respond to light, and to respond to other environmental cues C. setae in each body segment D. adductor muscles QUESTION 70 Which of the following Molluscan classes and their examples is mis-matched? A. Class Polyplacophora--example: chitons B. Class Gastropoda--example: garden slugs and snails C. Class Bivalvia--example: octopus and squid D. Class Cephalopoda--example: nautilus QUESTION 71 Suppose a marine biologist is conducting research on animals that have a lophophore and two calcified shells. Based on this information, this animal must belong to the phylum A. Brachiopoda B. Phoronida C. Ectoprocta D. Bryopoda QUESTION 72 Which class of arthropods contains members with two pairs of antennae, and legs on the thorax, and modified biramous "soft" legs on the ventral surface of the abdomen? A. Insecta B. Arachnida C. Chilopoda D. Crustacea QUESTION 73 The most successful class of Arthropods (being most numerous and occupying many different niches in nature) is the A. Arachnida B. Insecta C. Chilopoda D. Diplopoda QUESTION 74 Spiders lack jaws or mandibles, and are described as A. Agnatha B. Amandibulata C. blood suckers D. chelicerates

Name: question 55 most mollusks have an open circulatory system but some mollusks have a closed circulatory system which is more efficienct in delivering blood oxygen to body tissues which of the 23313
Uploaded: 2022-03-23T07:26:38-08:00
Duration: 1 min 28 s
Channel: Josee Pacheco
Description: question 55 most mollusks have an open circulatory system but some mollusks have a closed circulatory system which is more efficienct in delivering blood oxygen to body tissues which of the 23313

QUESTION 56
An example of an animal of the class Oligochaeta (Phylum Annelida) is the
A.
leech
B.
polychaete, which is very abundant in the ocean
C.
garden slug
D.
earthworm

QUESTION 57
What is the excretory organ that is found in earthworms?
A.
flame cells
B.
nephridia
C.
Malpighian tubules
D.
tiny kidneys

QUESTION 58
Snails have a "rasp-like" mouth that scrapes food into the digestive tract. This structure is called the
A.
radula
B.
planula
C.
gastrula
D.
lophophore

QUESTION 59
A recognizable "clump" of nervous tissue that can be referred to as a brain first appears in which group of animals?
A.
clams
B.
snails
C.
sea cucumbers
D.
earthworms

QUESTION 60
Arthropods have an exoskeleton made of this substance...
A.
silica
B.
collagen
C.
chitin
D.
cellulose

QUESTION 61
Latrodectus hesperus is the scientific name for
A.
medical leech
B.
black widow spider
C.
termite
D.
common housefly

QUESTION 62
This arthropod can produce cyanide gas as a defense mechanism.
A.
trap-door spider
B.
water flea
C.
aphid
D.
millipede

QUESTION 63
What is the muscle that "curls" the abdomen of a crustacean, enabling it to swim, or rapidly flip itself backward out of reach of predators? (This is the big muscle that you eat when you eat lobster, or shrimp, or crayfish "tails")
A.
flexor muscle
B.
extensor muscle
C.
adductor muscle
D.
longitudinal muscle

QUESTION 64
All of the following arthropods (insects) have wings except
A.
"true bugs"
B.
ants
C.
fleas
D.
praying mantis

QUESTION 65
The three phyla (Ectoprocta, Brachiopoda, Phoronida) have which of the following features in common?
A.
lophophore
B.
nephridia
C.
radula
D.
setae

QUESTION 66
Trochophores, the free-swimming larvae of many mollusks, are propelled through the water by
A.
flagella
B.
cilia
C.
flame cells
D.
nephridia

QUESTION 67
Radula modification allowed all of the following functions in gastropods except
A.
scraping algae off rocks (and aquarium sides)
B.
eating vegetation (especially cutting off soft stems of plants at ground level)
C.
boring holes in other mollusk shells
D.
protecting themselves with stinging nematocysts

QUESTION 68
Which of the following organs found in cephalopods (octopus) resemble those of the vertebrates?
A.
arms, tentacles
B.
functioning kidneys
C.
eyes
D.
digestive tissues, glands, and intestines

QUESTION 69
Annelids possess all of the following except
A.
longitudinal and circular muscles for movement
B.
ganglia to respond to light, and to respond to other environmental cues
C.
setae in each body segment
D.
adductor muscles

QUESTION 70
Which of the following Molluscan classes and their examples is mis-matched?
A.
Class Polyplacophora--example: chitons
B.
Class Gastropoda--example: garden slugs and snails
C.
Class Bivalvia--example: octopus and squid
D.
Class Cephalopoda--example: nautilus

QUESTION 71
Suppose a marine biologist is conducting research on animals that have a lophophore and two calcified shells. Based on this information, this animal must belong to the phylum
A.
Brachiopoda
B.
Phoronida
C.
Ectoprocta
D.
Bryopoda

QUESTION 72
Which class of arthropods contains members with two pairs of antennae, and legs on the thorax, and modified biramous "soft" legs on the ventral surface of the abdomen?
A.
Insecta
B.
Arachnida
C.
Chilopoda
D.
Crustacea

QUESTION 73
The most successful class of Arthropods (being most numerous and occupying many different niches in nature) is the
A.
Arachnida
B.
Insecta
C.
Chilopoda
D.
Diplopoda

QUESTION 74
Spiders lack jaws or mandibles, and are described as
A.
Agnatha
B.
Amandibulata
C.
blood suckers
D.
chelicerates

Added by Dawn D.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Josee Pacheco

03/23/2022

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Step 1: Identify which of the following options does NOT have a closed circulatory system, but has an open circulatory system. Show more…

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QUESTION 55 Most mollusks have an open circulatory system, but some mollusks have a closed circulatory system, which is more efficient in delivering blood (oxygen) to body tissues. Which of the following does NOT have a closed circulatory system, but has an open circulatory system? A. squid B. octopus C. cuttlefish D. snail QUESTION 56 An example of an animal of the class Oligochaeta (Phylum Annelida) is the A. leech B. polychaete, which is very abundant in the ocean C. garden slug D. earthworm QUESTION 57 What is the excretory organ that is found in earthworms? A. flame cells B. nephridia C. Malpighian tubules D. tiny kidneys QUESTION 58 Snails have a "rasp-like" mouth that scrapes food into the digestive tract. This structure is called the A. radula B. planula C. gastrula D. lophophore QUESTION 59 A recognizable "clump" of nervous tissue that can be referred to as a brain first appears in which group of animals? A. clams B. snails C. sea cucumbers D. earthworms QUESTION 60 Arthropods have an exoskeleton made of this substance... A. silica B. collagen C. chitin D. cellulose QUESTION 61 Latrodectus hesperus is the scientific name for A. medical leech B. black widow spider C. termite D. common housefly QUESTION 62 This arthropod can produce cyanide gas as a defense mechanism. A. trap-door spider B. water flea C. aphid D. millipede QUESTION 63 What is the muscle that "curls" the abdomen of a crustacean, enabling it to swim, or rapidly flip itself backward out of reach of predators? (This is the big muscle that you eat when you eat lobster, or shrimp, or crayfish "tails") A. flexor muscle B. extensor muscle C. adductor muscle D. longitudinal muscle QUESTION 64 All of the following arthropods (insects) have wings except A. "true bugs" B. ants C. fleas D. praying mantis QUESTION 65 The three phyla (Ectoprocta, Brachiopoda, Phoronida) have which of the following features in common? A. lophophore B. nephridia C. radula D. setae QUESTION 66 Trochophores, the free-swimming larvae of many mollusks, are propelled through the water by A. flagella B. cilia C. flame cells D. nephridia QUESTION 67 Radula modification allowed all of the following functions in gastropods except A. scraping algae off rocks (and aquarium sides) B. eating vegetation (especially cutting off soft stems of plants at ground level) C. boring holes in other mollusk shells D. protecting themselves with stinging nematocysts QUESTION 68 Which of the following organs found in cephalopods (octopus) resemble those of the vertebrates? A. arms, tentacles B. functioning kidneys C. eyes D. digestive tissues, glands, and intestines QUESTION 69 Annelids possess all of the following except A. longitudinal and circular muscles for movement B. ganglia to respond to light, and to respond to other environmental cues C. setae in each body segment D. adductor muscles QUESTION 70 Which of the following Molluscan classes and their examples is mis-matched? A. Class Polyplacophora--example: chitons B. Class Gastropoda--example: garden slugs and snails C. Class Bivalvia--example: octopus and squid D. Class Cephalopoda--example: nautilus QUESTION 71 Suppose a marine biologist is conducting research on animals that have a lophophore and two calcified shells. Based on this information, this animal must belong to the phylum A. Brachiopoda B. Phoronida C. Ectoprocta D. Bryopoda QUESTION 72 Which class of arthropods contains members with two pairs of antennae, and legs on the thorax, and modified biramous "soft" legs on the ventral surface of the abdomen? A. Insecta B. Arachnida C. Chilopoda D. Crustacea QUESTION 73 The most successful class of Arthropods (being most numerous and occupying many different niches in nature) is the A. Arachnida B. Insecta C. Chilopoda D. Diplopoda QUESTION 74 Spiders lack jaws or mandibles, and are described as A. Agnatha B. Amandibulata C. blood suckers D. chelicerates