ii) Distinguish between anurans and urodeles. 

Choose the correct word from the alternative given:
i) Trilobites are an extinct group of primitive/advanced arthropods.
ii) Spiders, ticks, mites and scorpions are included under the class Eurypterida/Arachnida.
iii) Spinning organs or spinnerets are characterstic of Araneae/Acarina.

How do the freshwater teleosts overcome their osmoregulatory challenges?

Arrange the character most appropriate to the class of Platyhelminthes against it.

State whether the following statements are ‘True’ or ‘False’:
i) Bivalves have adapted for filter feeding methods.
ii) The blood of cephalopods contains haemocyanin.
iii) Cephalopods have one of the best developed nervous systems among invertebrates.
iv) Development in bivalves includes trochophore and veliger larvae. 

c) Describe two anatomical features of lizards (including legless members) that distinguish them from snakes

Where was the Archaeopteryx discovered? Give reasons for the Archaeopteryx being considered the connecting link between reptiles and birds.