ANGIOSPERMOPHYTA & ANNELIDA
CLASSIFICATION
Isabel Hageman, Cabeth Dekker, Annelies Baeta and
Evelie Meurs
ANGIOSPERMOPHYTA
Angiospermophyta
Many different characteristics
but most commonly:
• Roots
• Leafs
• Stems
Seeds are produced from
ovules inside the ovaries.
Stems of flowering plants that
develop into shrubs and trees
are woody.
The fruits then develop from
the ovaries and disperse the
seeds.
The ovaries are part of the
flower.
Angiospermophyta
• Its vascular bundles (veins) are made of
xylem and phloem
• The leafs are waxy and usually arise as
leaf blades and leaf stalks. They are
relatively thin and are of dark green
colour
• The leafs are most commonly known to
be around 20-50 cm but can also be up to
2 m in length
• Leafs shoot from a rhizome that binds
with the sediment in order to reproduce
• A lot of flowers occur on a reproductive
shoot similar to those of terrestrial
grasses
ANNELIDA
Annelida
Annelida
Annelida can be considered as “segmented
worms”
They are classified into three categories:
Oligochaeta
Hirudinea
Polychaeta
Oligochaeta (earthworms)
These live underground
terrestrially in moist soil, and
come to the surface after heavy
rainfall.
Hirudinea (leeches)
These live near freshwater
streams because of an inability
to store water very well.
Polychaeta (marine worms)
These live in the ocean, filter
feeding in order to survive.
Oligochaeta (earthworms)
• These include all types of earthworms
• Members of this class have a
reproductive structure
• The head of these earthworms are
degenerated with sensory structure
which allows them to burry themselves
more easily
• Oligochaetes are monoecious (meaning
they contain both male and female
reproductive organs, hermaphrodites)
Hirudinea (leeches)
• Huridinea are also monoecious, but they
switch between being male and female.
They are never both at the same time
• They suck blood out of they predators
through their mouth, which has a
surrounding anterior sucker
• Most huridinea are predacious (meaning
they live by preying on other animals)
Polychaeta (marine worms)
• These are the most structurally diverse
of the annelids species and live only in
water
• They capture their prey with their
tentacles
• The fireworm specie has a poison-tipped
setae (tentacles) as a defense
mechanism
• Unlike the oligochaeta and hirudinea,
polychaetes are mostly dioecious
(meaning they either contain male or
female reproductive organs but never
both)