Question

Give an EXAMPLE SPECIES(common name) of an animal from each group. Below we have listed 20 organisms’ names. You need to choose which 10 of these belong in the table, and WHERE in the table they belong.

Aha ha

Banded woolly bear

Boomslang

Cave Weta

Cheese skipper

Chigger

Cluster duster

Coelacanth

Collared Pika

Dibbler

Harvestman

Hellbender

Hoatzin

Lumpsucker

Pacific geoduck

Plough-nose Chimaeras

Pouched lamprey

Roly poly

Sea apple

Short-beaked Echidna

Table 5.06Distinguishing features of vertebrate chordates. Add an example species of each from the list above. (10 points).

Group	Example species	Distinguishing features
Petromyzontida	1.	Vertebrate chordate, have a skull, but lack jaws
Chondrichthyes	2.	Have vertebral column enclosing dorsal nerve chord, jaws and a skull, cartilaginous skeleton
Actinopterygii	3.	Skeleton made of bone, not only cartilage.
Actinistia	4.	Lobe-finned fishes have bony structure in lobes that is precursor of pentadactyl limb; some lobe-finned fishes also have lungs
Amphibia	5.	First of tetrapods (4-limbed vertebrates) and fully terrestrial (as adults).  Breed in open water, larval stage in water.
Lepidosauria	6.	First amniotes – egg removes dependence on free water for reproduction.
Aves	7.	Have endothermic metabolism, feathers, flight skeleton.
Mammalia – monotremes	8.	Have hair and mammary glands; lay fertilized egg for reproduction.
Mammalia – marsupials	9.	Have short gestation of young in uterus; rest of development occurs in pouch.
Mammalia – placentals	10.	Have long gestation of young in uterus; young become relatively independent shortly after birth.

Answer 1

Answers:-

1. Pouched lamprey

Reason- It belongs to the class cyclostomata. These fish have circular, jawless mouth.

2. Plough-nose Chimaeras

Reason- also known as ghost sharks.

3. Lumpsucker

Reason- these are marine fish found in the Arctic, North Pacific and North Atlantic oceans.

4. Coelacanth

Reason- These are living fossil fish with no close relations alive.

5. Hellbender

Reason- it is a species of aquatic giant salamander fiund in Central & Eastern USA.

6. Boomslang

Reason- it is a large venomous snake whose eyes are exceptionally large.

7. Hoatzin

Reason- it is tropical bird found in Amazon & Orinoco basins in South America.

8. Short-beaked Echidna

Reason- monotremes are mammals which lay eggs instead of giving birth to young ones.

9. Dibbler

Reason- these are endangered marsupials mammals found in South-western.

10. Collared Pika

Reason- small lagomorphs found in Nothing-western Canada and Alaska.