Unit 3: Vertebrate Consumers

Question 1

What characteristic defines Cephalochordata?

Answer 1

The notochord extends into the head.

Question 2

which of the following statements about characteristics of Chordates is true?

Answer 2

The dorsal hollow nerve cord is part of the chordate central nervous system

Question 3

Which feature of Chordates do adult tunicates posses

Answer 3

pharyngeal slits

Question 4

According to genomics, which group of invertebrates is most closely related to vertebrates?

Answer 4

cephalochordates

Question 5

Which of the following is not a method by which birds reduce their body mass for easier flight?

Answer 5

They utilize a cross-current gas exchange system

Question 6

What is the main bird characteristic that scientists look for in fossils when assessing the evolution of birds?

Answer 6

Flight feather

Question 7

Which of the following details a key adaptation of reptiles?

Answer 7

Their scaly, permeable skin gave reptiles the ability to move onto land

Question 8

Which of the following is a characteristic of Caecilians

Answer 8

No limbs

Question 9

frogs belong to which order?

Answer 9

Anura

Question 10

Which of the following is a characteristic of amphibians?

Answer 10

an extra ear bone

Question 11

Which of the following amphibians uses lateral undulation to move?

Answer 11

Salamanders

Question 12

Which characteristic defines both lampreys and hagfish?

Answer 12

The lack of jaw

Question 13

Members of Chondrichthyes differ from members of Osteichthyes by having a _________.

Answer 13

Cartilaginous skeleton

Question 14

Pharyngeal slits

Answer 14

Filter-feeding organs found in invertebrate chordates (Lancelets and tunicates) and hemichordates living in the aquatic environment

Question 15

Notochord

Answer 15

A flexible rod-like structure that forms the main support of the body in the lowest chordates; a primitive spine.

Question 16

Dorsal nerve cord

Answer 16

A hollow cord dorsal to the notochord, formed from a part of the ectoderm that rolls, forming a hollow tube

Question 17

Ectoderm

Answer 17

the outer layer in the embryo of a metazoan

Question 18

Metazoan

Answer 18

a zoological group comprising the multicellular animals

Question 19

Clade

Answer 19

aka Class

Question 20

Homologous

Answer 20

equivalent in structure and in origin, but not necessarily in function

Question 21

Detritus

Answer 21

any disintegrated material; debris

Question 22

Deposit feed

Answer 22

to consume sediment and digest the organic matter

Question 23

Suspension feed

Answer 23

to collect suspended particles from the water

Question 24

What are the differences between frogs and toads?

Answer 24

Frogs: slim body type, prefer to jump, live in water
Toads: Stout body type, prefer to walk or use small hops, live on land

Question 25

Name three creatures from the order Cetacea (marine mammal)

Answer 25

Minke Whale, Dolphins, Porpoise

Question 26

Paddle-shaped tail like a beaver; a sleek, furry body lin an otter; and a flat bill and webbed feet like a duck.

Answer 26

Platypus

Question 27

What are the three types of mammals?

Answer 27

Monotremes, placental, marsupial

Question 28

What is external fertilization?

Answer 28

the release of both sperm and eggs into an external environment, aka spawning

Question 29

What is internal fertilization?

Answer 29

Sperm fertilizing the egg within the female; ovoviviparous (egg held within female)