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Answers
Explanation:
I) •They are eukaryotic, which means they have a nucleus.
•Most have mitochondria.
•They can be parasites.
•They all prefer aquatic or moist environments.
ii) •A segmented body (Figure below) with a head, a thorax, and abdomen segments.
•Appendages on at least one segment. ...
•A nervous system.
•A hard exoskeleton made of chitin, which gives them physical protection and resistance to drying out.
iii)• They are mostly found in marine and freshwater. ...
•They exhibit organ system level of organization.
•Their body has a cavity.
•The body is divided into head, visceral mass, muscular foot and mantle.
•The head comprises of tentacles and compound eyes.
•The body is covered by a calcareous shell.
Answer:
I) •They are eukaryotic, which means they have a nucleus.
•Most have mitochondria.
•They can be parasites.
•They all prefer aquatic or moist environments.
ii) •A segmented body (Figure below) with a head, a thorax, and abdomen segments.
•Appendages on at least one segment. ...
•A nervous system.
•A hard exoskeleton made of chitin, which gives them physical protection and resistance to drying out.
iii)• They are mostly found in marine and freshwater. ...
•They exhibit organ system level of organization.
•Their body has a cavity.
•The body is divided into head, visceral mass, muscular foot and mantle.
•The head comprises of tentacles and compound eyes.
•The body is covered by a calcareous shell.
Explanation: