Random Flashcards
how do sponges reproduce
:)
what is the name of Cnidaria larvae
planula
what are the 4 classes of Cnidaria
Hydrozoa, cubozoa, anthozoa, Scyphizoa,
are polyps asexual or sexual? Medusas?
asexual, sexual
what is the symmetry of Ctenophora
biradial
who has which heart
:)
who has which egg
:)
which phyla use diffusion
those with no circulatory system
do molluscs exhibit metamerism
no
who has veliger larvae
mollusca
free-swimming larvae of most marine snails and bivalves
who has trochophore larvae
trochophores
do amniotes use negative or positive ventilation breathing?
negative
what is the buoyant lipid found in the liver of a shark?
squalene
antlers
bone, shed, branched
horns
keratin and bone, not shed, not branched
4 types of glands
mammary, scent, sebaceous, sweat
sebaceous glands
keep skin glossy, hair follicle
the true stomach of ruminants
abomasum
sweat glands
apocrine (milky), eccrine (cooling)
cetaceans
whales, dolphins, porpoises
2 types of hair
guard hair, underhair
vibrissae
whiskers
advantages of territory
interruption-free mating, reduced competition for food, reduced overcrowding
3 main branches of mammalia
prototheria
theria
eutheria
panmitic
all members of the species mate randomly and are considered to form one large population
who has a thyroid gland
adult lampreys onward
archosauria
crocodilians and birds
anamniote
vertebrates that do not have an amniotic egg. (aquatic egg)
coelacanth exhibits…
stasis, their evolutionary lineage hasn’t changed over millions of years
porifera characteristics
radial, sponges reproduce asexually via budding, fragmentation, and gemmulation and sexually. most are viviparous.
digestion of cnidaria
extracellular and intracellular digestion
digestion of cnidaria
extracellular and intracellular digestion
integumentary system
role in protection, comprised of the skin and appendages
who excretes urea
terrestrial amphibians, mammals
what are the functions of the water vascular system
locomotion, food gathering, respiration, and excretion
who undergoes metamorphosis
arthropoda, amphibia, echinoderms, protochordata, mollusca
lamelle
contain blood cappilaries, make up the gills
arrow worms
neither a protostome or deuterostome, chaetognatha
ossicles
calcareous plates that form the endoskeleton
autogamy
joining of two haploid cells
telolecithal egg
birds, reptiles, fish, monotremes, some amphibians
mesolecithal
typical of amphibians
isolecithal
placental mammals, echinoderms, tunicates, cephalochardates, molluscs
centrolecithal
arthropods
**what are the muscles
supercoracoides (raises the wing)
pectoralis (largest muscle, depresses the wing)
both attached to the keel
what are the bird theories
cursorial and aboreal