Bio :C Flashcards
1
Q
Characteristics used to classify organisms
A
Physical structures, methods of reproduction, DNA and protein sequences
1
Q
Phylum: Porifera
A
- Marine dwelling
- Asymmetrical shape
- no tissues or organs
- Invertebrates
- examples: sponge
2
Q
Phylum: Cnidaria
A
- Aquatic (Marine and freshwater)
- Contain specialised cells called Cnidocytes(stingers)
- Exhibit regeneration
- External fertilisation
- Invertebrates
- tissue level organisation
- examples: jellyfish, sea anemone
3
Q
Phylum: Arthropoda
A
- Invertebrates
- Exoskeleton
- Segmented bodies
- Respiratory and excretory system
- Aquatic or terrestrial
- Organ level organisation
- Compound eyes
- examples: lobster, crab, spider, ant
4
Q
Phylum: Annelia
A
- Segmented worm like animals
- Organ level organisation
- Respire through body surface
- Invertebrates
- External fertilisation
- examples: Earthworm, leech
5
Q
Phylum: Mollusca
A
- Invertebrates
- Soft body
- Aquatic or terrestrial
- Organ level organisation
- Some have compound eyes
- Mostly egg laying
- examples: octopi, squid, snails
6
Q
Phylum: Echidnodermata
A
- Marine dwelling
- Organ level organisation
- Can reproduce asexually
- Most stationary or slow moving
- Spiny skin from spiny internal skeleton
- examples: starfish, sea cucumber, sea urchin
7
Q
Phylum: Nematoda
A
- Small non-segmented worm like animals
- tissue level organisation
- Sexual reproduction
examples: roundworm
8
Q
Phylum: Platyhekminthes
A
- Dorsoventrally flattened body (flat from top and bottom)
- organ level organisation
- Sexual or asexual reproduction
- examples: tapeworm
9
Q
Phylum: Chordata
A
- Most are vertebrates
- organ level organisation
- Share features during development:
- a notochord
- pharyngeal slits (gills)
- a dorsal hollow nerve cord
- post anal tail
- examples: monkey
10
Q
Phylum: Bryophytes
A
- Non vascular
11
Q
Phylum: Pterydophytes
A
- Spores
- Vascular
12
Q
Phylum: Gymnosperms
A
- Pollen
- Unprotected seeds
13
Q
Phylum: Angiosperms
A
- Flowering plants
- Produce fruits
