write any two features of class aves and class mammalia
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CLASS AVES (BIRDS):-
1:- the birds are the vertiberates whose bodies are covered externally with feathers, fore limbs are modified to form wings, mouth is toothless and jaws are prolonged in to beak and their bones arw hollow and light . most of the birds can fly with the help of their wings amd feathers , they can walk and also can swim in the water they have syrinx fixed in their neck through which they can sing with their meledious sound , birds lay their eggs on land and they reserve their food in the form of yolk in the egg they are warm blooded and examples are:- kiwi, duck, ostrish etc
CLASS MAMALIA:-
mammals are named so becoz of presence of mammary glands in their skin, mammary glands are functional and secret milk in females to feed up their babies. in addition with mammary glands they also have sweat glands, sebaceous glands and scent glands.
both upper and lower jaws in mouth bear various types of teeth. like birds they are also warm blooded.
mammals can be grouped in to these groups
1. egg laying mammals
2. pouched mammals
3.placental mammals
i can define more if u say
1:- the birds are the vertiberates whose bodies are covered externally with feathers, fore limbs are modified to form wings, mouth is toothless and jaws are prolonged in to beak and their bones arw hollow and light . most of the birds can fly with the help of their wings amd feathers , they can walk and also can swim in the water they have syrinx fixed in their neck through which they can sing with their meledious sound , birds lay their eggs on land and they reserve their food in the form of yolk in the egg they are warm blooded and examples are:- kiwi, duck, ostrish etc
CLASS MAMALIA:-
mammals are named so becoz of presence of mammary glands in their skin, mammary glands are functional and secret milk in females to feed up their babies. in addition with mammary glands they also have sweat glands, sebaceous glands and scent glands.
both upper and lower jaws in mouth bear various types of teeth. like birds they are also warm blooded.
mammals can be grouped in to these groups
1. egg laying mammals
2. pouched mammals
3.placental mammals
i can define more if u say
Answered by
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Vertebrate➫ The chordates that possess a backbone are called vertebrates.
► It is also a Subphylum Vertebrate.
➧ Characteristics are:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❱ Body is bilaterally symmetrical.
❱ Body wall is triploblastic.
❱ Complex differentiation of body tissues & organs
❱ Notochord is present in the Embryo.
❱ nerve cord is divided into brain & spinal cord.
❱ Brain is enclosed in a brain box.
❱ Body is divided into head Thorax & abdomen.
❱ Body has two pairs of fins or names.
❱ Gills either present throughout life or by lungs.
➧ Subphylum Vertebrate divided into Five Classes:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❶❭ Class Pisces:-
━━━━━━━━━━━━━━━━━━☟
❱ These are cold blooded.
❱ These are exclusively aquatic invertebrates.
❱ Body is streamlined.
❱ They have one pair of pectoral & pelvic fins.
❱ Respiration by 5 pairs of gills.
❱ Heart is two chambered.
❱ Skin is slimmy & covered with scales.
►Examples:- Electric Rays & DogFish
➧ Types 0f Class Pisces are:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
➀❭ Cartilaginous Fishes:-
━━━━━━━━━━━━━━━━━━☟
◉ Mouth is ventral.
◉ It is totally marine.
◉ Tail is heterocercal.
◉ Endoskeleton is Cartilaginous.
②❭ Cartilaginous Fishes:-
━━━━━━━━━━━━━━━━━━☟
◉ Mouth is trrminal.
◉ It is freshwater.
◉ Tail is homocercal.
◉ Endoskeleton is Bony.
❷❭ Class Amphibia:-
━━━━━━━━━━━━━━━━━━☟
❱ They are cold blooded animals.
❱ Body divided into head, trunk & Tail.
❱ Heart is three - Chambers.
❱ Fertilization is external & lay eggs.
❱ Respiration through gills, lungs & skin.
❱ They undergo hibernation & aestivation.
❱ Embryonic membrane is absent.
❱ Skin is a smooth & moist.
►Examples:- Seahorse & Catla
❸❭ Class Reptilia:-
━━━━━━━━━━━━━━━━━━☟
❱ They are cold blooded animals.
❱ Body divided into head, neck, trunk and tail.
❱ Heart is incompletely four chambered.
❱ Fertilization is internal.
❱ Respiration through gills.
❱ It is the first Terrestrial vertebrates.
❱ Embryonic membrane is present.
❱ Skin is rough & dry.
►Examples:- Frogs & Toads
❹❭ Class Aves:-
━━━━━━━━━━━━━━━━━━☟
❱ These are warm blooded.
❱ Feathers are present on the body.
❱ Respiration by lungs with air sacs.
❱ Mammary gland is absent.
❱ They are 0viparous. Beek present.
❱ Bones are flight.
❱ Sweat & oil gland is absent.
❱ External ear is absent.
►Examples:- Crows & Parrots
❺❭ Class Mammalia:-
━━━━━━━━━━━━━━━━━━☟
❱ They are also warm blooded.
❱ Body covered with hair.
❱ Respiration by lungs without air sacs.
❱ Mammary gland is present.
❱ Teeth are present.
❱ Sweet and all gland is present.
❱ Solid bones are present.
❱ Heart is four chamber.
❱ External ears are present.
►Examples:- Humans & Rabbits
_________
Thanks...✊
✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭
┗─━─━─━─━∞◆∞━─━─━─━─┛
Vertebrate➫ The chordates that possess a backbone are called vertebrates.
► It is also a Subphylum Vertebrate.
➧ Characteristics are:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❱ Body is bilaterally symmetrical.
❱ Body wall is triploblastic.
❱ Complex differentiation of body tissues & organs
❱ Notochord is present in the Embryo.
❱ nerve cord is divided into brain & spinal cord.
❱ Brain is enclosed in a brain box.
❱ Body is divided into head Thorax & abdomen.
❱ Body has two pairs of fins or names.
❱ Gills either present throughout life or by lungs.
➧ Subphylum Vertebrate divided into Five Classes:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❶❭ Class Pisces:-
━━━━━━━━━━━━━━━━━━☟
❱ These are cold blooded.
❱ These are exclusively aquatic invertebrates.
❱ Body is streamlined.
❱ They have one pair of pectoral & pelvic fins.
❱ Respiration by 5 pairs of gills.
❱ Heart is two chambered.
❱ Skin is slimmy & covered with scales.
►Examples:- Electric Rays & DogFish
➧ Types 0f Class Pisces are:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
➀❭ Cartilaginous Fishes:-
━━━━━━━━━━━━━━━━━━☟
◉ Mouth is ventral.
◉ It is totally marine.
◉ Tail is heterocercal.
◉ Endoskeleton is Cartilaginous.
②❭ Cartilaginous Fishes:-
━━━━━━━━━━━━━━━━━━☟
◉ Mouth is trrminal.
◉ It is freshwater.
◉ Tail is homocercal.
◉ Endoskeleton is Bony.
❷❭ Class Amphibia:-
━━━━━━━━━━━━━━━━━━☟
❱ They are cold blooded animals.
❱ Body divided into head, trunk & Tail.
❱ Heart is three - Chambers.
❱ Fertilization is external & lay eggs.
❱ Respiration through gills, lungs & skin.
❱ They undergo hibernation & aestivation.
❱ Embryonic membrane is absent.
❱ Skin is a smooth & moist.
►Examples:- Seahorse & Catla
❸❭ Class Reptilia:-
━━━━━━━━━━━━━━━━━━☟
❱ They are cold blooded animals.
❱ Body divided into head, neck, trunk and tail.
❱ Heart is incompletely four chambered.
❱ Fertilization is internal.
❱ Respiration through gills.
❱ It is the first Terrestrial vertebrates.
❱ Embryonic membrane is present.
❱ Skin is rough & dry.
►Examples:- Frogs & Toads
❹❭ Class Aves:-
━━━━━━━━━━━━━━━━━━☟
❱ These are warm blooded.
❱ Feathers are present on the body.
❱ Respiration by lungs with air sacs.
❱ Mammary gland is absent.
❱ They are 0viparous. Beek present.
❱ Bones are flight.
❱ Sweat & oil gland is absent.
❱ External ear is absent.
►Examples:- Crows & Parrots
❺❭ Class Mammalia:-
━━━━━━━━━━━━━━━━━━☟
❱ They are also warm blooded.
❱ Body covered with hair.
❱ Respiration by lungs without air sacs.
❱ Mammary gland is present.
❱ Teeth are present.
❱ Sweet and all gland is present.
❱ Solid bones are present.
❱ Heart is four chamber.
❱ External ears are present.
►Examples:- Humans & Rabbits
_________
Thanks...✊
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