Read the following statement carefully. (a). Hooks and sucker are present in parasitic forms b. Some
Channel: Doubtnut
Date: 2020-01-26

Read the following statement carefully. (a). Hooks and sucker are present in parasitic forms b. Some of them absorb nutrients from the host directly through their body surface. (c). Fertilisation is internal and development is through many larval stages. Here we are talking about: