Question

what are parasitic adaptation in flatworms

6) what is Mantle cavity

7) what is osmoregulation

8) what are the dioecious animals

9) write the function of parapodia in Annelida

10) which type of Skeleton present in Arthopoa

11) mention any two economically important insects

Answer 1

Parasitic adaptation in flatworms

• Reduced nervous system and other systems
• High reproducibility
• Development of suckers and hooks etc.
• Protective body covering that protects the organism from digestive enzymes.
• Anaerobic respiration

2)Mantle cavity

The mantle cavity is a central feature of molluscan biology. This cavity is formed by the mantle skirt, a double fold of mantle which encloses a water space. This space contains the mollusc's gills, anus, and organs for taste, excretion and reproductive organs.The mantle cavity functions as a respiratory chamber in all molluscs

3)Osmoregulation

The process by which cells and simple organisms maintain fluid and electrolyte balance with their surroundings.

4)Dioecious animals

Species that it has distinct male and female individual organisms

5)Function of parapodia in Annelida

The fleshy protrusions on the sides of some marine gastropods are also called parapodia. They are particularly well-developed in sea butterflies. Some sea hares use their parapodia to swim. Parapodia can even be used for respiration (similar to gills) or for locomotion.

6)which type of Skeleton present in Arthopoda

The arthropod skeleton is external (an exoskeleton).

7)Mention any two economically important insects

Apis, the honeybees produce millions of tons of honey every year, it also gives bees wax from its combs.

Sericulture(extraction of silk from caterpillars)