Biology Invertabrates

Front 1

invertabrates

Back 1

animals with no backbones

Front 2

symmetry

Back 2

is one common way to identify animals shape(arrangments of body parts around a certian point)

Front 3

anterior

Back 3

front end or head

Front 4

posterior

Back 4

hind or tail end

Front 5

dorsal

Back 5

top (or back) of the organism

Front 6

ventral

Back 6

bottom(or Chest) of the organism

Front 7

ceohalization

Back 7

animals that have nerve tissue and sensry organs concentrated in the antierior or head area

Front 8

cells of a multicellular organismans are _________ for a particular function

Back 8

specilized

Front 9

sexual reproduction devoplment begins with a fertilized egg or ________

Back 9

zygote-diploid-46

Front 10

the zygote forms an _________

Back 10

embryo

Front 11

soon a hollow sphere of cells called a _____________ forms.

Back 11

blastula (stem cells)

Front 12

as the blastula develops, cells move inward to form a __________. futher infolding forms a ___________.

Back 12

blastapore, gastula

Front 13

when will differentiation (cell specialization ) take place?

Back 13

gastulrlization

Front 14

the outer most germ layer is the __________.

Back 14

ectoterm (skin of the organism)

Front 15

the middle layer of the germ layer

Back 15

mesoterm

Front 16

the cells on the inside form the _or gut lining

Back 16

indoterm

Front 17

what layer of the germ layer is the digestive track?

Back 17

indoterm

Front 18

phylum porifera

Back 18

sponges

Front 19

porifera means

Back 19

porvara- sponges

Front 20

these animals are_____. which means?

Back 20

sessile, they do not move and they attach firmly to the ground

Front 21

how do sponges reproduce?

Back 21

A-sexual (produces an exact copy of it's self)

Front 22

gemmules

Back 22

sexual ( two copies)- is the covering of a zygote will stay on if the conditions are bad enough, but if they are good it will fall off

Front 23

fragmentation

Back 23

a-sexual, a peice beakes off then it devoples into a new organism

Front 24

regeneration

Back 24

regenerate the rest of it's body if it is broken off

Front 25

budding

Back 25

a new sponge- smaller version of it's parents

Front 26

phylum Cnidaria

Back 26

hydra, jelly fish, coral

Front 27

hemophrodite

Back 27

both sex organs

Front 28

what are the two ways a hemophrodite reproduces?

Back 28

cross fertilization- shoots out sperm and egg
self fertilization-offspring identical to parents

Front 29

what are positive effects of cross fertilization?

Back 29

improves survial in enviorment, varity of off spring

Front 30

what are negitive theings of self fertilaization?

Back 30

there is no improvment gentic or physical

Front 31

planula

Back 31

sessilzes larva form of a jellyfish

Front 32

polyp

Back 32

the young stage of a jellyfish-sessile

Front 33

medusa

Back 33

the babies that break off of polyp and then matures into jelly fish

Front 34

corals

Back 34

are small polyps most of which are living in colonies.

Front 35

when polyp dies their harden skeleton remains what does it serve as? and doe the reff provide anything for the fish?

Back 35

it provides a foundation for new polyp corals and provides food and shelter for fish and invertabrates

Front 36

certian alge form ________ __________ with coral.

Back 36

symbiotice relationship

Front 37

what are the three main types of body caivties or abscence of them?

Back 37

aceolomate, pseudocoelomate, celomate

Front 38

aceolomate
define, examples

Back 38

no body cavity, least complex organism
sponges, cnidarians, flatworms

Front 39

pseudocoelomate
define, example

Back 39

false bady cavity -roundworms

Front 40

celomate

Back 40

true body cavity, most complex.

Front 41

organisms with celomic body cavities have ______ that hold their organs in place

Back 41

membranes

Front 42

the body caivity is filled with _________ and heps organs supports itself

Back 42

fluid

Front 43

phylum platyhelminthes

Back 43

flatworms planaria

Front 44

flatworms shoe slight _____ because _______ and _________ are located in the anterior of the organism

Back 44

cephilization, ganglia and eyespots

Front 45

phylum nemotoda

Back 45

roundworms

Front 46

round worms and other parasitic worms hav a __________or a flexible covering to protect itself from digetisive ________ of the host.

Back 46

cuticle, fluids

Front 47

haw are heart worms transmitied

Back 47

by misquitos

Front 48

how can we get trichinosis

Back 48

from pork and beef

Front 49

the most commom roundworm parasicte in the us is the

Back 49

pinworm

Front 50

phylum mollusca

Back 50

snails, clams, squid

Front 51

gastupod

Back 51

snails, sluggs, largest class " one shell" snails have an open circulation system, a redula

Front 52

redula

Back 52

tooth like tounge used for scraping alge and other food

Front 53

bivalues

Back 53

two valves or shells, clams, oysters, scallops, muscular foot, specialized for burrowing in the sand

Front 54

cephalopods

Back 54

octopus, squids, head-foot-closed circulartory system, large well devopled head and prominent foot, divided into tenticales , captures its prey with tenitcals ands strong suckers kills and eats with sharp beak like jaws

Front 55

open cirulatory system

Back 55

blodd does not circulate entirely within the blood vesseles, instead blood is collected from the gills and lungs pumped through the heart and released iinto spaces in the tissues. used in slow moving or sessile organisms

Front 56

closed circulatory system

Back 56

blood circulates enirerly with in blood vessels, rapidly transports food and oxoygen in highly active organisms

Front 57

phylum annelida

Back 57

earthworms

Front 58

to move earth worm anchoes segments by setae ( bristile)

Back 58

setae ( bristile)

Front 59

contraction of muscles build up fluid pressure with in the ______

Back 59

body cavity