Deck 23: Animals: the Diversity of Life 3

Question 1

Leeches are in the phylum:

A) Nematoda.
B) Mollusca.
C) Annelida.
D) Cnidaria.
E) Platyhelminthes.

Answer 1

C

Question 2

"Collar cells" perform what function for sponges?

A) create a current to pull water through pores
B) ingest food particles
C) help the sponge move through water
D) anchor the sponge to a base
E) produce a body cavity

Answer 2

A

Question 3

Which of the following parasites is a roundworm (Nematoda)?

A) hookworm
B) fluke
C) leech
D) tapeworm

Answer 3

A

Question 4

Flatworms are the most primitive animal phylum to have:

A) asymmetry.
B) radial symmetry.
C) organs.
D) a circulatory system.
E) muscle tissue.

Question 5

Cnidarians typically obtain food by:

A) filter feeding.
B) stinging and pulling prey to the mouth with tentacles.
C) amoeboid-like engulfing of prey.
D) forming cooperative arrangements with photosynthetic organisms.

Question 6

The typical "jellyfish" demonstrates which stage of the cnidarian life cycle?

A) blastula
B) polyp
C) medusa
D) serpentine
E) sessile

Question 7

As a general, common feature, what characteristic do flatworms (Platyhelminthes) have in common with some of the more advanced animal phyla?

A) bilateral symmetry
B) segmentation
C) complex sensory organs
D) a shell
E) a coelom

Question 8

The single characteristic that all animals have that other organisms don't is that they:

A) possess the ability to change location.
B) are single celled.
C) possess sensory systems.
D) undergo a blastula stage in development.
E) are terrestrial.

Question 9

The phylum of animals that does not show true tissues or symmetry is:

A) Nematoda.
B) Annelida.
C) Platyhelminthes.
D) Cnidaria.
E) Porifera.

Question 10

Which of the following animal phyla are most closely related?

A) Echinodermata and Chordata
B) Arthropoda and Annelida
C) Porifera and Cnidaria
D) Platyhelminthes and Nematoda

Question 11

A characteristic that is common to cnidarians is:

A) an osculum.
B) a medusa stage in the life cycle.
C) that they create coral reefs.
D) stinging cells.
E) a complete digestive tract.

Question 12

A characteristic of annelids is:

A) freshwater existence.
B) parasitism.
C) ocean-dwelling existence.
D) a radula.
E) body segmentation.

Question 13

Which of the following would be a valid characteristic of animals that may also be shared by other groups of organisms?

A) Some animals have cell walls.
B) All animals are multicellular.
C) Some animals are sessile their entire lives.
D) Some animals are photosynthetic.
E) All animals are relatively large.

Question 14

Which of the following is a group of parasitic flatworms?

A) annelids
B) flukes
C) nematodes
D) leeches
E) sea anemones

Question 15

The overwhelming majority of animals are:

A) invertebrates.
B) vertebrates.
C) unicellular.
D) mammals.
E) sessile.

Question 16

Sponges, cnidarians, and flatworms all lack which characteristic found in most other animal groups?

A) tissues
B) a coelom
C) symmetry
D) the blastula embryo
E) motility

Question 17

Bilateral symmetry refers to distribution of body parts:

A) randomly in pairs from top to bottom.
B) around a central axis.
C) similarly on right and left sides.
D) in pie-slice sections.
E) in no particular order.

Question 18

Snails and slugs are in which mollusc group?

A) cephalopod
B) bivalve
C) gastropod
D) arthropod
E) radula

Question 19

Which characteristic is common to all molluscs?

A) mantle
B) tentacles
C) radula
D) brain
E) open circulatory system

Question 20

Which of the following is not an advantage of a body cavity?

A) It allows flexibility and safe storage of organs.
B) It allows for the storage of eggs or offspring.
C) It provides a safe place for an expandable digestive tract.
D) It provides for movement.

Question 21

At some point in their lives, all chordates have:

A) jaws.
B) gills.
C) a brain.
D) a dorsal nerve cord.
E) a ventral nerve cord.

Question 22

Reptiles, birds, and some mammals share which of the following characteristics?

A) are predators
B) are warm-blooded
C) exhibit live birth
D) have light, hollow bones
E) produce amniotic eggs

Question 23

Which group is most closely related to the echinoderms?

A) Arthropods
B) Molluscs
C) Chordates
D) Nematodes
E) Annelids

Question 24

Nearly all echinoderms are found in which habitat?

A) lakes
B) rivers
C) beaches
D) ocean surface
E) ocean floor

Question 25

Which statement about the vertebrates is most accurate?

A) They are the dominant phylum in the animal kingdom.
B) There are more vertebrate species than flatworms or cnidarians but fewer than there are insects.
C) They are the only group to have evolved aquatic, terrestrial, and flying lifestyles.
D) They evolved from echinoderms.
E) They evolved from molluscs.

Question 26

As part of your independent study in field biology, you are sent to a small, inland sea. In one of your samples, you discover a small eel-like creature. It has a stiff, rod-shaped structure running the length of its dorsal side, with a line of nervous tissue running along with it. You would begin the process of classifying this organism by placing it in phylum:

A) Vertebrata.
B) Arthropoda.
C) Chordata.
D) Cnidaria.
E) Mollusca.

Question 27

The term "arthropod" best translates as:

A) human-like.
B) outside skeleton.
C) sharp jaws.
D) jointed leg.
E) hairy legs.

Question 28

A notochord is a:

A) tough yet flexible support structure.
B) dorsal nerve cord.
C) ventral nerve cord.
D) specialized tail adapted for swimming.
E) tube for circulating water through gills.

Question 29

Refer to the scenario below, and then answer the following question(s).
As part of your independent study in field biology, you are sent to the seashore to take samples. In one of your samples, you discover a flexible, sessile creature. It looks somewhat plant-like, but then you notice a polyp that is producing medusa-like animals.
The type of reproduction you are observing is:

A) sexual reproduction.
B) asexual budding.
C) parthenogenesis.
D) oviparous.
E) viviparous.

Question 30

Which statement about nematodes is most accurate?

A) They are mainly parasites.
B) They are mainly crop pests.
C) They all have straight, flattened bodies.
D) They fit into numerous ecological roles including detritivores.
E) They have exoskeletons made of cellulose.

Question 31

External fertilization of eggs in animals is:

A) rarely seen except in aquatic environments.
B) most common in arthropods.
C) less common in cnidarians.
D) absent in vertebrate species.
E) most common among hermaphroditic species.

Question 32

Ticks and horseshoe crabs are members of subphylum:

A) Urochordata.
B) Chelicerata.
C) Crustacea.
D) Insecta.
E) Uniramia.

Question 33

In addition to maintaining a wet environment necessary for survival of the embryo, what other essential characteristic does the amniotic egg possess?

A) a shell that most predators cannot break
B) ability to absorb nutrients from the environment
C) easier fertilization
D) low energy/material for the mother to produce
E) ability to allow for gas exchange

Question 34

Which would be a fact supporting the hypothesis that echinoderms such as sea stars evolved into radial symmetry from bilateral symmetry?

A) Their larvae have bilateral symmetry.
B) They use their appendages in a bilateral manner.
C) Their brains show the mirror image development of bilateral symmetry.
D) They swim like animals with bilateral symmetry.

Question 35

Refer to the scenario below, and then answer the following question(s).
As part of your independent study in field biology, you are sent to the seashore to take samples. In one of your samples, you discover a flexible, sessile creature. It looks somewhat plant-like, but then you notice a polyp that is producing medusa-like animals.
The creature is likely to be related to:

A) Arthropods such as lobsters.
B) Echinoderms such as sea cucumbers.
C) Poriferans such as sponges.
D) Chordates such as sea squirts.
E) Cnidarians such as Obelia.

Question 36

What replaces the membranes and nutrition source of amniotic eggs in organisms that exhibit live birth without amniotic eggs?

A) yolk sac
B) amnion
C) placenta
D) allantois
E) chorion

Question 37

A hermaphrodite is an organism that:

A) generally reproduces asexually.
B) does not require males for sexual reproduction.
C) possesses both male and female sex organs.
D) can select the sex of its offspring.
E) usually stores sperm in female structures for months after copulation.

Question 38

Extra protective behaviors toward young may have evolved from a common ancestor in evolutionary lines leading to the:

A) mammals, turtles, and snakes.
B) crocodiles, dinosaurs, and birds.
C) turtles, snakes, and lizards.
D) amphibians, lizards, and fish.
E) dinosaurs, turtles, and lizards.

Question 39

A form of asexual reproduction in which an unfertilized egg can develop into an adult organism is:

A) budding.
B) fission.
C) oviparous reproduction.
D) parthenogenesis.
E) hermaphrodism.

Question 40

When we say an animal has an "open circulatory system," this means that:

A) a small amount of blood may leak out of vessels.
B) blood flows out of vessels and into spaces or sinuses.
C) the animal has a single-chambered heart, so blood mixes from all areas.
D) there are no vessels-blood simply fills all spaces inside the coelom.
E) movement of the animal is solely responsible for moving circulatory fluid.

Question 41

A marine animal with tube feet and radial symmetry is certainly an echinoderm.

Question 42

There are more species in the insect group of phylum Arthropoda than all other animal phyla combined.

Question 43

There are both aquatic and terrestrial species in the phylum Mollusca.

Question 44

Asymmetry refers to arrangement of body parts evenly around a central point.

Question 45

Whereas all animals are multicellular, some are nevertheless microscopic.

Question 46

Match the following.

A) medusa stage
B) crustaceans
C) trichinosis
D) bivalves
E) collar cells
Nematoda

Question 47

Blood stays within vessels in a closed circulatory system.

Question 48

Most species of sponges live in freshwater environments, but a few species are marine.

Question 49

Copulation is necessary for all animals using internal fertilization.

Question 50

Invertebrate animals greatly outnumber vertebrates.

Question 51

There is far more animal diversity in the ocean than on land in part because animals first evolved in the ocean.

Question 52

What type of skeleton is found in annelids?

A) endoskeleton
B) exoskeleton
C) dermal skeleton
D) hydrostatic skeleton
E) notochords

Question 53

Sponges were the earliest animals to evolve true tissues.

Question 54

Corals exhibit the polyp body form only.

Question 55

Annelids demonstrate the important animal characteristic of body segmentation.

Question 56

Mammals are the only group of animals to demonstrate significant protection of their young.

Question 57

Molting is necessary for:

A) all animals.
B) all animals with skeletons.
C) all animals with exoskeletons.
D) all animals with endoskeletons.
E) only animals with endoskeletons and scaly skin.

Question 58

Cnidarians such as jellyfish have muscle and nervous tissues.

Question 59

Platyhelminthes is the first phylum to possess a coelom.

Question 60

All chordates are vertebrates.

Question 61

The animal phyla with the most diversity and greatest representation in the animal kingdom have developed tissues, organs, and body cavities. Less successful phyla have not. Evaluate and explain why this is so.

Question 62

Match the following.

A) unfertilized egg develops into an adult
B) cushioning membrane
C) Obelia polyps producing medusae
D) both male and female reproductive organs
E) fertilized egg laid outside mother's body
F) fertilized egg develops in the mother's body
Hermaphrodite

Question 63

Animals that do not have a backbone are called ________.

Question 64

Match the following.

A) unfertilized egg develops into an adult
B) cushioning membrane
C) Obelia polyps producing medusae
D) both male and female reproductive organs
E) fertilized egg laid outside mother's body
F) fertilized egg develops in the mother's body
Amnion

Question 65

Refer to the figure below, and then answer the following question(s).
The missing label indicated by a "1" corresponds to the:

A) radial symmetry.
B) bilateral symmetry.
C) asymmetry.

Question 66

Match the following.

A) unfertilized egg develops into an adult
B) cushioning membrane
C) Obelia polyps producing medusae
D) both male and female reproductive organs
E) fertilized egg laid outside mother's body
F) fertilized egg develops in the mother's body
Oviparous

Question 67

Match the following.

A) unfertilized egg develops into an adult
B) cushioning membrane
C) Obelia polyps producing medusae
D) both male and female reproductive organs
E) fertilized egg laid outside mother's body
F) fertilized egg develops in the mother's body
Asexual budding

Question 68

Match the following.

A) medusa stage
B) crustaceans
C) trichinosis
D) bivalves
E) collar cells
Arthropoda

Question 69

Discuss why nearly all larger animals have circulatory systems, and describe the differences between the open circulatory system and the closed circulatory system.

Question 70

Match the following.

A) medusa stage
B) crustaceans
C) trichinosis
D) bivalves
E) collar cells
Cnidaria

Question 71

Match the following.

A) medusa stage
B) crustaceans
C) trichinosis
D) bivalves
E) collar cells
Porifera

Question 72

We see a great deal of variation in reproductive strategies in the animal kingdom. Evaluate the basic strategies and trends in egg fertilization and protection in sexually reproducing animals.

Question 73

The features common to all chordates are: ________, ________, ________, and ________.

Question 74

Match the following.

A) unfertilized egg develops into an adult
B) cushioning membrane
C) Obelia polyps producing medusae
D) both male and female reproductive organs
E) fertilized egg laid outside mother's body
F) fertilized egg develops in the mother's body
Parthenogenesis

Question 75

Match the following.

A) unfertilized egg develops into an adult
B) cushioning membrane
C) Obelia polyps producing medusae
D) both male and female reproductive organs
E) fertilized egg laid outside mother's body
F) fertilized egg develops in the mother's body
Viviparous

Question 76

Match the following.

A) medusa stage
B) crustaceans
C) trichinosis
D) bivalves
E) collar cells
Mollusca

Question 77

Refer to the figure below, and then answer the following question(s).
The missing label indicated by a "2" corresponds to the:

A) radial symmetry.
B) bilateral symmetry.
C) asymmetry.

Question 78

The structure in cnidarians with both digestive and circulation functions is the ________.

Question 79

Sponges acquire food by ________ as water passes through.

Question 80

What are the benefits and challenges of an exoskeleton?