3.3 Animalia Flashcards
(14 cards)
protostomes
Animals that develop a mouth before the anus in the embryonic stage
deuterostomes
Animals that develop an anus before the mouth in the embryonic stage
Acoelomate
no internal, fluid-filled body cavity separating its body wall from its digestive tract
Coelomate
main body cavity in many animals and is positioned inside the body to surround and contain the digestive tract and other organs
Endoderm
the innermost layer
which include the lining of the gut and associated structures
mesoderm
he middle
bone, tissue, muscle
ectoderm
It is the outermost layer
This includes the skin,
hormone regulation
barrier
Gastrula
a stage in the early embryonic development of most animals, during which a single-layered blastula is reorganized into a three-layered embryo
Cnidaria
Symmetry: radial
Characteristics:
- Acoelomate
- regeneration
- often semi transparent and bell shaped
Human uses:
- meds
coastal protection
Arthropoda
Symmetry: bilateral
Characteristics:
- segmented bodies
- hard exoskeleton
- jointed limbs
Human uses:
- food
- pest control
Annelida
Symmetry: bilateral
Characteristics:
- regenerative
- tripoblastic
- closed cirulatory system
Human uses:
- fishing bait
- fertilize soin
- leeches for medical help
Nematodes
symmetry: bilateral
Characteristics:
- cylindrical
- pseudocoelom
- complete digestive, excertory and nervous system
Human uses:
research
Mullosca
symmetry: bilateral
characteristics:
- soft body
- a head and foot region
=- hard shell
Human uses:
- jewelry
- food
- ink
Echinodermata
Symmetry: radial
characteristics:
- external skeleton
- regenerative
- tube feet
Human uses:
- entertainment
- protection
- medicine
