Animal Phyla Flashcards
How do sponges feed
Intracellular digestion
sponges gas exchange
diffusion
sponges circulation
diffusion
sponges excretion
diffusion
what type of development do sponges have (protostomic or deuterostomic)
none
What type of body cavity do sponges have
none
How many embryonic tissue layers do sponges have
none
What type of symmetry do sponges have
asymmetry
What is a polyp
the sedentary form of cnidaria
what is medusa
the free-swimming form of cnidaria
What type of symmetry do Cnidarians have
radial
How many embryonic tissue layers do Cnidarians have
dipoblastic (endoderm and ectoderm)
What type of body cavity do cnidarians have
lack a body cavity
are cnidarians protostome or deuterostome
neither
Cnidarians excretion
diffusion
Cnidarias circulation
diffusion
Cnidarias gas exchange
diffusion
How do Cnidaria move (ex: what type of skeleton: hydrostatic, hydraulic, etc.)
hydrostatic skeleton
What is a gastrovascular cavity
also known as an incomplete digestive tract. Used for digestion and transport of nutrients, one opening for food and waste (two-way digestive tract)
what kind of digestive tract do cnidarians have
incomplete digestive tract/gastrovascular cavity
how do cnidarians feed
extra and intracellularly
what kind of digestive tract do Platyhelminthes have
incomplete digestive tract/gastrovascular cavity
what number of tissue layers do Platyhelminthes have
triploblastic
are Platyhelminthes protostomes or deuterostomes
protostome
What type of symmetry do Platyhelminthes have
bilateral
what kind of body cavity do Platyhelminthes have
acoelomate
what are Endoparasites
and animal that lives inside a host’s digestive tract
examples of endoparasites
flukes and tapeworms
Platyhelminthes excretion
Protonephridial System (group of flame cells)
Platyhelminthes circulation
diffusion
Platyhelminthes gas exchange
diffusion
how do Platyhelminthes feed
by extending their pharynx and releasing enzymes outside their body
proglottid
functions in reproduction, each proglottid contains both male and female parts (monoecious). also has microvilli on surface for tapeworm to absorb nutrients
scolex, hooks, and suckers
scolex is the “head” and contains hooks and suckers which enables them to hang on to the digestive tract of the host
what are nematocysts
produce harpoon-like structures that help cnidarians defend themselves and capture prey
what is a hydrostatic skeleton used for
helps support and move the animal
what are flame cells
is a part of the excretory system and helps remove waste
How to tell female nematode appart
Bigger, (Y shaped) 2 branches of reproductive tract
How to tell male nematode appart?
Smaller, hooked tail, one branch of the reproductive tract
What is eutely
Every individual of the nematode species has the exact same number of cells. (Highly regulated cell division)
What is a cuticle
a barrier between the animal and the environment, The cuticle also contributes to the thrashing movement in nematodes because of its elastic recoil
What type of symmetry do Nematodes have
bilateral symmetry
How many embryonic tissue layers do Nematodes have
triploblastic