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