Animal Phyla

Question 1

ANIMAL

Answer 1

Multicelluar organisms with tissues, organs and organ systems
go through larval or embryoic devolpment

Question 2

LARVAL DEVELOPMENT
(METAMORPHOSIS)

Answer 2

the young look very different from the adult
EX: caterpillars 🡪butterflies.

Question 3

EMBRYONIC DEVELOPMENT

Answer 3

young version is a mini-version of the adult

Question 4

Zoology

Answer 4

is a branch that studies anaimlas

Question 5

TWO BIG GROUPS

Answer 5

Invertebrates
They have no backbone
97 % of animals
have 7 alpha

Vertebrates
(The Chordata phyla)
They have a backbone
3% of animals

Question 6

PROTOSTOMES VS. DEUTEROSTOMES

Answer 6

Protostomes:
Frist opening in form mouth
Simple organism (athropods, flatworms, annelids)

Deuterostomes:
Frist opening is form anus
Complex organism (human, tiger, monkey)

Question 7

7 alpha Invertibrates

Answer 7

PORIFERA
CNIDARIAN
PLATYHELMINTHES
ANNELIDA
MOLLUSKS
ARTHROPODS
ECHINODERMS

Question 8

porifera

Answer 8

• seapsonge
  no defined shape (assymeterical)
• no tissues or oragns
• immobile
• conloy of specilized cells
• good regeration powers
• skelton has sponging ( modifed collogen) and spicules and (hard crytsal mertail)

Question 9

cndarian

Answer 9

• jellyfishes, coral, anemones
• radial symmery= symmertry from each point of cirle
• no brain but primitive nerve
• 2 way digestive tract= one hole to digestive and release food
• stinging cells to get food

Question 10

plathelminthes

Answer 10

• firts animal to show bilateral symmertry (divdied in 4 ways)
• has premtitive brain
• 3 tisuue layers
• includes free living and parsidtic flatworms (tapeworms, flukes)

Question 11

annelida

Answer 11

• earthworms, sandworm, leeches
• one way digetsive track
• well devolped digestive and circulatory tract

Question 12

mollusk

Answer 12

• sails, octopus, slugs, squid, oyster, clam
• had no shell, one shell or two shells
• many have hard mouth parts (sail and slugs radula in gaslopods and squids have beak in cephalopods

Question 13

arthopods

Answer 13

• joint legged
  incsects, centipeeds, arachinds
• exoskeltan (outer skelaton) made out of chiten
• shell must shed to grow

Question 14

echinoderms

Answer 14

• spicky, spiney, skinned
  -sea stars, sea urchins, sea cucumbers, sand dollars, brittle stars
• adults have radial symmetry
• larval have bilateral sysmtery
  -have tube feet (stick) and water in vascular system
  -Appear to have 5 points (pentamerism)

Question 15

5 classes VERTEBRATES

Answer 15

Class Fish: get oxygen underwater
Class Amphibia: can live on land and water
Class Reptilia
Class Aves: have feathered wings
Class Mammalia: warm blooded