Mppsc, Pre_Unit-7, (Updated 2024-25), §Animal Kingdom§

§Animal Kingdom:- "A basic group of natural objects that includes all living & extinct animals."

                              (Easy to Understand)

A} Vertebrates:- #) Animals with backbones & spinal columns.

#) Most advanced organisms on earth.

A.1) Reptiles-  ∆] Cold blood      ∆] Dry skin     

∆] Have scaled   ∆] Lay-Eggs    ∆] 4 legs or no legs 

∆] Ear holes instead of ears.

A.2) Amphibians:- ∆] Cold blood   ∆] Live on-land & water 

∆] Breath with lungs & gills     ∆] Smooth skin  ∆] Four legs   ∆] Lay Eggs

A.3) Mammals :-  ∆] Warm blood    ∆] Have hairs               ∆] Live on land   ∆] Give birth to live young once 

∆] Have four legs  ∆] Ears that stick-out

A.4) Fish :- ∆] Cold blood  ∆] Live in water 

∆] Breath with gills   ∆] Lay Eggs  ∆] Ear holes 

∆] Have scales & fins

A.5) Birds:- ∆] Warm blood    ∆] Have feathers 

∆] Lay Eggs   ∆] Two legs    ∆] Ear Holes 

 

B) Invertebrates:- #) Don't have backbones.

#) 98% species in the world are - invertebrates.

#) Many invertebrates have - fluid filled & hydrostatic skeleton like - Jelly Fish.

#) Others have hard outer shell like - insects & crustaceans.

B.1) Annelids:-  ∆] Bodies that are divided into segments.

∆] Very well-developed integral organs.

∆] Found everywhere in the world.

∆] Don't have limbs.

∆] Examples- Earthworm, Roundworm & Leeches.

B.2) Arachnids:- ∆] Don't have antennae.

∆] 2 body parts & 4pairs of legs.

∆] Examples :- Spider,  Scorpio, Ticks & Mites.

B.3) Anthropodes :- ∆] Limbs   ∆] Exoskeleton 

∆] Examples - Crustaceans, Insects & Arachnids.

B.3.1) Crustaceans:- ∆] Live in ocean ∆] Hard & external shell  ∆] Examples- Crab, Lobster, Barnacle.

B.3.2) Insects :- ∆] Exoskeleton   ∆] 3body parts  

 ∆] 6 legs & an antennae.

B.4) Mollusk:- ∆] Soft skin & covered with hard outer shells.

∆] Some mollusk live on land - Snails , Slug.

∆] Other live on water - Oyster, Octopus, Mussels &  Clam Squid.

B.5) Protozoa:- ∆] Simple & single celled   

∆] Smallest animal   ∆] Microscopic 

∆] Examples - Amoeba  Flagellates.

B.6) Echinoderma :- ∆] Marine animals.

∆] Arms/Spines.

∆] Examples- Sea Star, Sea Urchin, Sea Dollar, Sea Cucumber.