Zoology by Raghvendra Mishra Sir

Golgibody Lysosome Endoplasmic reticulum #biology #cell biology #science #education Follow Back

https://youtu.be/4UAVj-IqE7I?si=e4bUqje0PG2JtOqO

Digestive system of Amphioxus # chordata

https://youtu.be/6ANqQtPS7ec?si=EiaADPiGHWaZO0gT

Blood vascular system of Amphioxus Amphioxus

https://www.youtube.com/

Raghvendra's biology for Intermediate B.Sc. M.Sc. Biology classes for Intermediate B.Sc. M.Sc. and NEET

https://youtu.be/S0oUITByUb0?si=bavjmJfdLUiqRlB5

sandwitch..unit membrane...fluid mosaic model of plasma membrane Topic describes different model to explin str.of plasma membrane biology

https://youtu.be/FRiJ51z-ZWE?si=SAr46AyM6peD8X0F

Regulation of transcription in Eukaryotes: notes are available in short video Histone modification.nucleosome remodelling

https://youtu.be/t7As4UH8ea8?si=NvT2Mq0ZIZ4r_OhO

Regulation of gene expression : Operon model ; lac operon and trp operon Topic covers lac operon and trp operonNotes are also available in community section

Notes on operon concept
Lac operon and trp operon

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Great Egret)
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Pelecaniformes
Family: Ardeidae
Genus: Ardea
Species: A. alba
Binomial name:Ardea alba
(Size & Shape)
Great Egrets are tall, long-legged wading birds with long, S-curved necks and long, dagger-like bills. In flight, the long neck is tucked in and the legs extend far beyond the tip of the short tail.
( Color Pattern)
All feathers on Great Egrets are white. Their bills are yellowish-orange, and the legs black.
(Behavior)
Great Egrets wade in shallow water (both fresh and salt) to hunt fish, frogs, and other small aquatic animals. They typically stand still and watch for unsuspecting prey to pass by. Then, with startling speed, the egrets strike with a jab of their long neck and bill.
(Habitat)
You’ll find Great Egrets in both freshwater and saltwater habitats. They are colonial nesters, typically placing stick nests high in trees, often on islands that are isolated from mammalian predators such as raccoons.