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Species Profile

Ascaris lumbricoides

Roundworm

Ascaris lumbricoides
KingdomAnimalia
PhylumAschelminthes
ClassNematoda
OrderUnknown
FamilyUnknown

Introduction

Ascaris lumbricoides lives in human intestine.

Endoparasitic and cosmopolitan.

Causes ascariasis.

Size & Structure

01

Long cylindrical body

02

Tapering ends

03

Male smaller than female

04

Cream-coloured

Ascaris lumbricoides — 3D Model
No 3D model available

General Features

Coelom
Pseudocoelomate
Body plan
Tube within a tube body plan (Protostomous)
Germ layer
Triploblastic
Metamerism
Absent
Body symmetry
Bilateral
Fertilization
Internal
Digestion type
Complete
Nervous system
Circumpharyngeal nerve ring
Excretory organ
Renette cells
Body temperature
Poikilothermic, stenohaline
Circulatory type
Type-I (absent)
Development type
Indirect
Respiratory type
Anaerobic
Mode of excretion
Ammonotelism
Circulation system
Absent
Skeleton structure
Cuticular exoskeleton
Level of Organisation
Organ system level
Regulation of Osmosis
Osmoregulator

Ecology

Human intestinal parasite

Part of parasite life cycle

Influences host nutrition

Economic Importance

Medical importance

Public health concern

Used in parasitology studies