complex animals test Flashcards
what classes are in phylum molluscs
gastropods-snails,slugs
bivalves-oysters,scallops,clams,mussels
cephalopods-octopus,squid,cuttlefish
what classes are in phylum echinoderms
crinozoa- sea lilies, feather stars
asterozoa-sea stars,brittles stars
echinozoa-urchins,sea cucumbers/biscuits and sand dollars
what classes are in phylum arthropods
arachnida-spiders,ticks,mites,horseshoe crabs
crustacea-crabs,shrimp
myriapoda-centipede,millipedes
hexapods-butterflies,beetles
characteristics of fish
ecothermic have scales closed circulatory system wasted removed from gills/kidneys sex can change during life cycle
characteristics of amphibians
moist skin aquatic as larve,terrestrial as adults no scales or claws ectothermic closed circulatory filter feeders as larve, carnivores as adults
characteristics as reptiles
leathery/scaly skin ecthothermic double loop circulatory system live out of water amniotic eggs with shells
characteristics of birds
endothermic outer coving of feathers 2 legs with claws high metabolic rate double loop circulatory system
characteristics of mammals
mammary tissue hair follicles endothermic complex circulatory system herbivores-carnivores
3 different kinds of animals
marsupials
placental
oviparous
what is endothermic
warm blooded animals
body temp dependent of their environment
ectothermic
cold blooded animals
body temp depends on external sources
closed circulatory system
heart pumps blood through vessels
open circulatory system
blood pumps often deposits into spaces io drain back once organs have been bathed with blood
what are the two different metamorphosis
simple/gradual
complex/complete
explain simple/gradual metaphorphsis
three changes
egg>nymph>adult with 3-5 instars
adulte and nymph eat same food
explain complex/complete metamorphosis
four changes
egg>larva>pupa>adult
larvae and adults eat different food
molluscs structure
muscular foot>used for locomotion
mantle>thin,delicate tissue covers the body
shell>made of calcium
visceral>below mantle contains organs
what are snails,slugs scientific name
gastropoda
what is oysters,scallops,clams,mussels scientific name
bivalves
what is octopus,squid,cuttlefish scientific name
cephalopods
echinoderms characteristics
spiny skin
have 5 part radial symmetry
have tube feet
water vascular system and ring canal
sea lilles and feather stars scientific name
crinozoa
sea stars ,brittle start scientific name
asterozoa
urchins,sea cucumbers/biscuits and sand dollars science name
echinozoa
arthropod characteristics
molts exoskeleton to grow
go through metamorphosis
jointed appendages
compound eyes can see in uv
3 body regions of arthropods
head thorax abdomen
spiders,ticks,mites and horseshoe crab scientific name
arachnida
crabs and shrimp science name
crustacea
centipede scientific name
myriapoda
butterflies and beetles scientific name
hexapoda
what are mandibles
appendages used for biting or stabbing prey
characteristics of cephalopods
tentacles
highly motile
use jet propulsion
ink defence
characteristics of myriapods
many many legs
what parts are in a spiders body
cephalothox and abdomen
what are some parts of a starfish
Stomach, gonads ,central disk, tube feet and anus
describe echinoderm life cycle
sperm and egg released and a starfish releases its gametes in response and fertilization occur, bilateral symmetry Iarve develop in the water and settle to the bottom undergo metamorphosis mature into radial symmetry adults
what are the 3 kinds of fish
bony, jawless and cartilaginous
