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bio 2
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what stage is this
zygote

what stage is this
2 cell

what stage is this
4 cell

what stage is this
8 cell

what stage is this
morula

what stage is this
blastula

what stage is this
late stage blastula

what stage is this
blastomere: any cell that is a result of cell cleave (growing embryo is made of many blastomeres)

what is 1
mesoderm

what is 2
ectoderm

what is 3
endoderm

what is 4
archenteron

what is 5
blastopore

what is this
sponge spicules

what is this
colonial sponge (large holes: osculum, small holes: ostium)

what is this
grantia spicules

what is this
hydra

what is 1
nerve net

what is 1
tentacles

what is 2
mouth

what is 3
gastrovascular cavity

what is 4
asexual bud

what is 1
eye spots

what is 2
auricles

what is 3
pharynx

what is 4
gastrovascular cavity

what is 1
ovaries

what is 2
testes

what is 3
uterus

what is 1
mouth

what is 2
pharynx

what is 3
citellum

what is 4
crop

what is 5
gizzard

what is 6
seminal receptors

what is 1
mantle

what is 2
foot

what is 3
visceral mass

what is 4 and 5
adductor muscles

what is 6
gills

what is 7
heart

what is 1
abdomen

what is 2
swimmer (telson at end of tail)

what is 3
gills

what is 4
cephalothorax

what is 5
compound eye

what is 6
antennae

what is 7
pinchers

what is 8
walking legs

what is 1
pedipulps

what is 2
cephalothorax

what is 3
abdomen

what is 4
walking legs

what is 1
ampulla

what is 2
ambulacral ridge

what is 3
gonads

what is 4
digestive glands

what is 5
madroporite

what is 6
anus

what is 7
mouth

what is 8
radial canal

what is 9
central dish

what is 10
pedicellariae

aboral or oral
aboral

what is 1
tube feet

what is 2
ampulla

what is 3
digestive glands

what is 4
ambulacral groove/ridge

what is 1
brain

what is 2
mouth

what is 3
ventral nerve cord

what is 4
gastric caeca

what is 5
eggs

what is 6
ovary

what is 7
heart

what is 1
oral tentacles

what is 2
notochords

what is 3
myotomes

what is 4
gill slits

what is 5
nerve cord

what is 6
intestines

what is 7
anus

what is 8
dorsal fin

what is 9
caudal fin

what is 10
ventral fin

what is 1
spiracle

what is 2
pectoral fin

what is 3
pelvic fin

what is 4
dorsal fin

what is 5
gil slits