Question

  Give the characteristics of flatworms, algae, round worms. Give their phylum too.​

Answer 1

Answer:

Flat worms

Phylum - Platyhelminthes

Dorsoventrally flat, i.e. flat body from top to bottom.

No true body cavity.

Mostly hemaphrodite, i.e., male and female sex organs present in the same individual.

Round worms

Phylum - Nematoda

Body is cylindrical.

Pseudocoelom (Sort of body cavity).

Sexes are separate.

Segmented worms

Phylum - Annelida

Body is segmented from head to tail.

True body cavity.

May be unisexual or bisexual.

Answer 2

Answer:

most of the amphibians lay their eggs in the water coz :

Explanation:

Unlike other tetrapod vertebrates (reptiles, birds, and mammals), amphibians do not produce amniotic eggs. Therefore, they must lay their eggs in water so they won't dry out..

hope it helps u lil...... purple u forever