Diversity Of Animalia (Ch 27)

Question 1

describe eukarya

Answer 1

eukaryotic
Multicellular
Heterotrophic (can’t produce food through photosynthesis)
Have a nervous system

Question 2

6 types of Phyla of Interest

Answer 2

Phylum Cnidaria
Phylum platyhelminthes
Phylum Nematoda
Phylum Annelida
Phylum Arthropoda
Phylum Chordata

Question 3

cnidaria examples

Answer 3

jelly fish and corals

Question 4

platyhelminthes examples

Answer 4

flatworms

Question 5

nematoda examples

Answer 5

roundworms

Question 6

annelida examples

Answer 6

leech (segmented worms)

Question 7

phylum arthropoda examples

Answer 7

Insects, spiders, hairy, scary

Question 8

Phylum Chordata examples

Answer 8

Vertebrates, mammals, fish

Question 9

characteristics that allow cnidaria

Answer 9

central mouth
Tentacles

Question 10

cnidocytes are __

Answer 10

Cnidocytes
Tentacles sting prey and push food to mouth

Question 11

3 types of Platyhelminthes (flatworms)

Answer 11

planarians and flukes and tapeworms

Question 12

what are planarians

Answer 12

Aquatic, free living (feed on its own)

Question 13

what are flukes

Answer 13

=Parasites
=Cause many diseases
Ex: blood fluke disease (common in Africa, South America) = live in blood vessels
=Symptoms - abdominal pain and anemia

Question 14

what are tapeworms

Answer 14

parasites

Question 15

other word for nematoda (roundworm)

Answer 15

hookworm

Question 16

describe nematoda

Answer 16

Non segmented
Free living + parasites of plants and animals
Ex: ASCARIS SP
males: small and thin
Female: thicker

Question 17

body of annelida resembles a

Answer 17

fused rings

Question 18

purpose of segments in annelida (segmented worms)

Answer 18

Segments give mobility and flexibility into soil

Question 19

3 types of annelida

Answer 19

earthworm, clam worm, leech

Question 20

earthworm

Answer 20

Tube shaped, segmented
Live in soil
Feeds on live and dead organic matter

Question 21

clam worm

Answer 21

Tube shaped, segmented
Aquatic
Feeds on live and dead organic matter

Question 22

leech

Answer 22

Segmented worms
Hirudo medicinal is
Hirudin- prevents blood clot

Question 23

arthropoda is the __ phylum, and most __

Answer 23

largest, diverse

Question 24

4 types of arthropoda

Answer 24

1) Insects (bees, beetles, flies)
2) Arachnids (spider, scorpions, ticks)
3) Myriapods (centipedes and millipedes)
4) Crustaceans (crabs, lobsters, shrimp)

Question 25

why are arthropoda so successful

Answer 25

1) Have external skeleton (exoskeleton)
=Chitin: polysaccharide
=Molting: process of growing and leaving cytoskeleton

2) Jointed appendages for locomotion, feeding, defense, sensing environment

Question 26

5 distinctive features of Chordata

Answer 26

1) Dorsal, hollow cord
2) Notochord (flexible do b/w digest and nerve cord)
3) Pharyngeal gill lists
4) Post-anal tail
5) Iodine binding glands in humans (thyroid)

Question 27

2 groups of invertebrate chordata

Answer 27

Tunicates
Lancelets

Question 28

5 common classes of phylum chordata (vertebrate)

Answer 28

1. fish
2. amphibians
3. reptiles
4. aves (birds)
5. mammalian (mammals)

Question 29

3 categories that fall under the “fish” class

Answer 29

Class Agnatha (jawless fish, like lampreys) **
Class Chondrichthyes (sharks and rays)
Class Osteichthyes (bony fish, goldfish)

Question 30

what does class Agnatha resemble

Answer 30

fish

Question 31

how does class agnatha suck blood

Answer 31

uses sharp teeth and rasping tongue to attach to body of fish

Fish that survive the attack left with a large open wound and become infected and lead to death

Question 32

characteristic of mammals

Answer 32

hair + mammary glands

Question 33

3 major groups of mammals

Answer 33

1. monotremes
2. marsupials
3. Eutherians (placentals)

Question 34

describe monotremes

Answer 34

lay eggs
= Female lay eggs
= Ex: echidnas + platypus

Question 35

describe marsupials

Answer 35

1. have pouch
2. Brief gestation period (embryo nourished by placenta)
3. Give birth to tiny offspring that completes development that attached to mothers nipples
4. Nursing young in pouch (marsupium)

ex: kangaroo

Question 36

what does eutherians (placentals)

Answer 36

During gestation, embryos are nurtures inside mother by placenta
(ex: cat, dog, lion)