Chordates

Question 1

invertebrate chordates which do not have fins

Answer 1

Lancelets

Question 2

a membrane which serves as a transparent eyelid in frogs

Answer 2

Nictitating membrane

Question 3

Fishes whose eggs hatch and form within their body leading to “live” birth

Answer 3

Ovoviviparous

Question 4

An extra respiratory organ in amphibians ( must be kept moist)

Answer 4

Their skin

Question 5

Which class of vertebrates are birds from?

Answer 5

Aves

Question 6

A substance that covers the outer surface of most mammals

Answer 6

Hair

Question 7

A membrane that aids in a frogs hearing

Answer 7

Tempanic membrane

Question 8

A structure found in many organisms in which urine , wastes, and gametes leave the body.

Answer 8

A cloaca

Question 9

These are present in adult amphibians for respiration.

Answer 9

Lungs

Question 10

Fish which have thin fins are called __________.

Answer 10

Ray finned

Question 11

Fish that has no jaw and produces a disgusting amount of slime

Answer 11

Hagfish

Question 12

Which glands produce milk in mammals?

Answer 12

Mammary glands

Question 13

Structures that aid in flight and provide insulation for birds

Answer 13

Feathers

Question 14

Individual segments that together make up a backbone

Answer 14

Vertebrae

Question 15

Number of chambers in a heart of an amphibian

Answer 15

Three

Question 16

Fishes have thicker , bone supported fins are called _______. Believed that terrestrial organisms evolved from them.

Answer 16

Lobe finned fishes

Question 17

Major advancement in evolution for fish in their ability to feed was when they developed ______.

Answer 17

Jaws

Question 18

Parasitic jawless fish which sucks body fluids out of host

Answer 18

Lamprey

Question 19

Class of organisms that are aquatic as larvae and terrestrial when adults

Answer 19

Amphibia

Question 20

Class of vertebrates that have dry and scaly skin , lungs and terrestrial eggs

Answer 20

Reptilia

Question 21

The class that includes sharks, skates and rays

Answer 21

Chondrichthyes

Question 22

A hollow nerve cord in chordates located near the ______ surface of their body

Answer 22

Dorsal

Question 23

A type of egg that can develop in a terrestrial environment without drying out

Answer 23

Amniotic egg

Question 24

A supporting rod running through body of chordates at some point in their life

Answer 24

Notochord

Question 25

Fishes whose young develop inside the mothers body without there being an egg

Answer 25

Viviparous

Question 26

Number of chambers in a birds heart

Answer 26

Four

Question 27

Class that includes jawless fish

Answer 27

Agnatha

Question 28

Class which contains fish like salmon, tuna and perch

Answer 28

Osteichtyes

Question 29

What do fish use to breathe?

Answer 29

Gills

Question 30

These ______ pouches are found near the throat region in all chordates at some point of their lives

Answer 30

Pharyngeal

Question 31

Organisms that depend on heat from outside the body, their surrounding environment

Answer 31

Ectothermic

Question 32

Chordates are characterized by a _____ , which extends beyond the anus for some time in their lives

Answer 32

Tail

Question 33

Filter feeding , invertebrate chordates

Answer 33

Tunicates ( sea squirts)

Question 34

Large piercing teeth found on roof of frogs mouth

Answer 34

Vomerine teeth

Question 35

Structures covering outer surface of fish

Answer 35

Scales

Question 36

Substance that makes up a shark and a rays skeleton

Answer 36

Cartilage

Question 37

Organisms whose body temperature is regulated internally

Answer 37

Endothermic

Question 38

One direction respiration can be found in these organism :

Answer 38

Birds

Question 39

Number of chambers in the heart of a fish

Answer 39

Two

Question 40

What is the monotremes group in mammals?

Answer 40

Group that lays eggs

Question 41

Which group of mammals have their young mostly develop in their pouches ?

Answer 41

Marsupials

Question 42

Which group of mammals have their young develop inside the mothers body?

Answer 42

Placental mammals