More animal diversity

Question 1

Nematoda example

Answer 1

round worms

Question 2

Nematoda possess

Answer 2

Mouth
Pharynx
Intestine
Ventral nerve
Reproductive organs
Protective cuticle.

Question 3

Most nematoda are ____ ____ and involved in ____ ____. Some are ____ and cause ____.

Answer 3

Most nematoda are free living and involved in nutrient recycling. Some are parasitic and cause infection.

Question 4

Arthropoda examples

Answer 4

insects, crustaceans

Question 5

Arthropoda characteristics

Answer 5

Largest phylum

functional segmentation of the body

the presence of jointed appendages

exoskeleton made principally of chitin

coelom takes the form of a hemocoel (or blood cavity).

Open circulatory system

Question 6

Examples of mollusca

Answer 6

clams, barnacles, octupus, snail

Question 7

Mollusca attributes

Answer 7

Asymmetrical

Gil – oxygen exchange

Radula – scrapes food particles

Nephridia- excretion of waste

GI tract –have “gastric torsion”

Circulatory system

Reproductive organs

Question 8

Mollusca Classes

Answer 8

Aplacophora

Monoplacophora

Polyplacophora

Bivalvia

Gastropoda

Cephalopoda

Scaphopoda. (“boat feet”)

Question 9

Quality of mollusca class Aplacophora

Answer 9

shell-less and marine. Found worldwide

Question 10

Quality of mollusca class Monoplacophora

Answer 10

have a single, cap-like shell enclosing the body.

Question 11

Quality of mollusca class Polyplacophora

Answer 11

bear an armor-like, eight-plated shell

Question 12

Ex of mollusca class Bivalvia

Answer 12

(“two shells”) clams, oysters, mussels, scallops, and geoducks.

Question 13

Ex of mollusca class Gastropoda

Answer 13

(stomach foot)- snails, slugs, conchs, sea hares

Question 14

Ex of mollusca class Cephalopoda

Answer 14

(“head foot” animals)- octopuses, squids, cuttlefish, and nautilus.

Question 15

mollusca class Scaphopoda are also known as ____ ____

Answer 15

“boat feet”

Question 16

Annelida are ___

Answer 16

segmented worms

Question 17

Annelida traits

Answer 17

Bilaterally symmetrical

Circular and longitudinal muscles

Complete digestive system

Found in marine, terrestrial, and freshwater habitats

Protected by a cuticle (unlike nematodes it is thin enough to grow and does not need to shed)

Chaetae- chitinous hairlike extensions from the cuticle

Closed circulatory system with muscular pumping “hearts”

Can be monoecious (earthworms/ leaches) or diecious (polycheates)

Question 18

classes of annelida

Answer 18

Polychaeta and Clitellata

Question 19

Chordata examples

Answer 19

mammals, cephalochordates

Question 20

Echinodermata examples

Answer 20

sea star, sea urchins, sea cucumbers

Question 21

Echinoderm traits

Answer 21

Radially symmetrical

water vascular system.- central ring that extends to each arm for gas, nutrient and waste exchange – regulated by the madreporite

“Tube feet,” which protrude through openings in the endoskeleton to allow for movement

Question 22

Four common features appear at some point in chordate development:

Answer 22

Notochord

dorsal hollow nerve cord

Pharyngeal slits

post-anal tail

note
(some of these traits are present only during embryonic development)

Question 23

dorsal hollow nerve cord:

Answer 23

Derived from ectoderm

develops into the brain and spinal cord

Question 24

Pharyngeal slits

Answer 24

openings in the pharynx

Question 25

2 types of cordates

Answer 25

vertebrate /Invertebrate

Question 26

Invertebrate cordate example

Answer 26

lancelet

Question 27

early vertebrate example

Answer 27

agnathans (Class Agnatha) represented today by lampreys

Question 28

The two major groups of living fishes are the classes

Answer 28

Chondrichthyes Osteichthyes

Question 29

Chondrichthyes

Answer 29

Cartilaginous fishes have a flexible skeleton made of cartilage, multiple external gill slits, placoid scales do not grow (only in number)

Question 30

Osteichthyes

Answer 30

skeleton reinforced by hard calcium salts, single gill slit, scales (if present) grow in size

Question 31

A second evolutionary branch of bony fishes closest relatives to terrestrial vertebrates includes ____ and ____

Answer 31

lungfishes and lobe-finned fishes

Question 32

African Lungfish

Answer 32

Young have gills, adults have lungs. Can live for many months without water

Question 33

Coelacanth

Answer 33

Thought to be extinct until on was caught in 1938. Deep sea trench Dweller, can use its fins to “walk.”

Question 34

Class Amphibia traits

Answer 34

The first terrestrial vertebrates collectively called tetrapods, which means “four legs” Exhibit a mixture of aquatic and terrestrial adaptations Usually need water to reproduce since eggs do not contain an amnion (membrane in egg)

Question 35

reptile Adaptations for living on land include

Answer 35

Scales to prevent dehydration Lungs for breathing The amniotic egg

Question 36

T or F Reptiles are endotherms

Answer 36

F Reptiles are ectotherms

Question 37

Class Aves

Answer 37

Birds

Question 38

Class Aves traits

Answer 38

Bones are honeycombed Some specific organs are absent Endothermic No urea

Question 39

T or F Bird anatomy and physiology are not modified for flight

Answer 39

F Bird anatomy and physiology are modified for flight

Question 40

Mammals traits

Answer 40

Hair Mammary glands that produce milk to nourish the young

Question 41

three major groups of mammals

Answer 41

Monotremes marsupials Placental mammals

Question 42

Monotremes

Answer 42

mammals that are Egg-Layers

Question 43

marsupials

Answer 43

the pouched mammals