Early Flashcards
What makes an animal an animal?
Multicellular
Heterotroph
Could be her/car/omnivores
Most produce sexually some asexually
All are motile in at least one stage of life
Blastula/Gastrula
Blastula: ball of cells
gastrula: embroyo ball cup shaped 3 layers of cell
porifera
Sponges
asymmetrical
lack tissues
sessile
larvae r motile
4 types of tissue
Connective
ephethelial
muscle
NErvous
Asymmetrical
lack of symmetry porifera
Radial
central axis cnideria
bilateral
symmetry on both sides arthropod
Arthropod
osculum
hollow tube with large opening on poriferas
ostia
porers along sides h2o entrance
Hermaphrodotic porifera
produce both m and f gametes realeased to water to find neighboring eggs
Cnideria
radial
first true tissues
soft bodied
two germ layers
carnivourous
Muscle tissue
allows movement when muscle cells contract in unison
nervous tissue
send electrical and chemical signals throughout body
Nematocyts
harpoon like hair that comes out of tentacles when something is touched
Cnidarian body part
Choanocytes
have flagella responsible for moving steady current water up sponge
Medusa
bell shaped
mouth downwards
motile
sexual reproduction
polyp
cylindrical
upwards
sessile
asexual
Cnidarian reproduction
Poly bud produce medusa medusa produce larvae which attach to hard surface creating polyp
corals
symbiosis of cnidarian and algae coral feeds algae with waste and algae glucose for coral