Classifications Flashcards
(10 cards)
1
Q
Porifera
A
- No mouth, no anus, no symmetry
- Internal spicules. Pores over surface for drawing in water for feeding
EX Fan, cup, tube, glass sponges
2
Q
Cnidaria
A
- Mouth only. Radial symmetry
- Hard corals which secret CaCo3
- Tentacles arranged in rings around the mouth.
- Can have more than one life stage
EX Coral, jellyfish, hydras
3
Q
Platyhelminthes
A
- Mouth only. Bilateral symmetry
- No blood or gas systems
- Soft with no skeleton
- Flat and think bodies
EX flatworms, tapeworms, flukes
4
Q
Annelida
A
- Mouth and anus. Bilateral symmetry
- Internal cavity with fluid under pressure
- Blood vessels visible
- Bodies made up of many ring-shaped segments
EX Leeches, bristleworms, ogliochaptos
5
Q
Mollusca
A
- Mouth and anus. Bilateral symmetry
- Hard rasping radula used for feeding
- Folds in the body used for secretion
- Most have shells made of CaCo3
EX Snails, squids, octopus
6
Q
Arthropoda
A
- Mouth and anus. Bilateral symmetry
- External skeleton, made of chitin plates
- Segmented bodies and legs or other appendages with joints
EX Insects, arachnids, crustaceans
7
Q
Bryophyta
A
- Mosses
- No roots, instead simple structures called rhizoids
- No vascular tissue
- Spores produced in capsules at the end of a stalk
8
Q
Filicinophytes
A
- Ferns
- Roots present, short non-woody stems
- Leaves usually divided into pairs of leaflets
- Vascular tissue present
- Spores produced in sporangia on the underside of leaves
9
Q
Coniferophytes
A
- Conifers, shrubs and trees
- Roots present, woody stems
- Leaves usually narrow with thick waxy cuticles
- Vascular tissue present
- Seeds develop from ovules in female cones, male cones produce pollen
10
Q
Angiospermophytes
A
- Flowering types
- Leaves and roots vary in structure. Stems may be woody
- Vascular tissue present
- Seeds develop from ovules in ovaries. Seeds are dispersed by fruit
