First slide

Classification of Animals

Question

Which of the following is not the correct identification/characteristic of the organism?

Easy

A

It is Fasciola hepatica.
B

Flame cells help in osmoregulation and excretion.
C

Hermaphrodite and development is through many larval stages.
D

Fertilisation is internal (generally self) and direct development

Solution

In platyhelminthes, the development is mostly indirect and is through many larval stages.
Specialised cells called flame cells help in osmoregulation and excretion.
They are mostly hermaphroditic (Schistosoma haematobium is unisexual).

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