Read the statement carefully.
Notochord is a mesodermally derived rod-like structure formed on the verntral side during embryonic development in some animals (chordates). Point out, if any misprinting is observed in this statement.

Read the following statements (i) Animals in which the cells are arranged in two embryonic layers, an external ectoderm and an internal endoderm, are called diploblastic animals. Notochord is an ectodermal derived rod like structure formed on the ventral side during embryonic development in some animals. In some animals, the body cavity is not lined by mesoderm, instead, the mesoderm is present as scattered pouches in between the ectoderm and endoderm ans such a body cavity is called pseudocoelom. Which of the following statement(s) is/are correct?

Mesodermally derived rod-like structure present in chordates is (1) Nerve cord (2) Notochord (3) Coelom (4) metamere

Mesodermally derived rod-like structure present in chordates is (1) Nerve cord (2) Notochord (3) Coelom (4) metamere

Read the following statements and select the true ((T)) or false ((F)) statement . A. The notochord is an ectodermal derived rod-like structure in chordates. B. Platyhelminthes are triploblastic and pseudocoelomate animals. C. The alternation of generation in Obelia is called Metagenesis . D. In ctenophora , only sexual mode of reproduction is observed.

Read the following statements and select the true ((T)) or false ((F)) statement . A. The notochord is an ectodermal derived rod-like structure in chordates. B. Platyhelminthes are triploblastic and pseudocoelomate animals. C. The alternation of generation in Obelia is called Metagenesis . D. In ctenophora , only sexual mode of reproduction is observed.

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: