Annelids
Examples
Euchone analis (bottom left), Hirudo medicinalis (bottom middle), Lumbricus terrestris (bottom right)
Euchone analis (bottom left), Hirudo medicinalis (bottom middle), Lumbricus terrestris (bottom right)
Evolutionary Milestones
Annelids have passed five evolutionary milestones: eukaryote, tissues, bilateral symmetry, body cavity, and enclosed body cavity.
Habitat
Annelids live in most environments with a few exceptions the include: frozen soil and dry sand/ soil.
Anatomical/ Structural Features
Annelids have passed five evolutionary milestones: eukaryote, tissues, bilateral symmetry, body cavity, and enclosed body cavity.
Habitat
Annelids live in most environments with a few exceptions the include: frozen soil and dry sand/ soil.
Anatomical/ Structural Features
How do they acquire nutrients
Annelids are heterotrophic and most are herbivores. They use their digestive track to eat their food.
What do they eat
Annelids eat soil or blood.
What eats them
Annelids are consumed by fish and land animals such as hedgehogs, moles, and birds.
Symmetry
Annelids have bilateral symmetry.
Mobility
They use setae, tiny bristles on each of their segments, to move.
Reproduction
Earthworms and leeches are hermaphrodites and bristle worms use sexual reproduction by mating.
Development
Annelids are heterotrophic and most are herbivores. They use their digestive track to eat their food.
What do they eat
Annelids eat soil or blood.
What eats them
Annelids are consumed by fish and land animals such as hedgehogs, moles, and birds.
Symmetry
Annelids have bilateral symmetry.
Mobility
They use setae, tiny bristles on each of their segments, to move.
Reproduction
Earthworms and leeches are hermaphrodites and bristle worms use sexual reproduction by mating.
Development
Other Information
Earthworms introduce air into and fertilize soil. Leeches are used medically for limb reattachment.
Earthworms introduce air into and fertilize soil. Leeches are used medically for limb reattachment.