Birds are characterized by feathers, wings, a beak or bill, laying eggs, a lightweight skeleton, and molting. Feathers are made of keratin and have several functions, including flight, insulation, incubation, courtship, and waterproofing. There are two main types of feathers - pennaceous feathers which form the wings and tails and provide lift, and plumulaceous feathers which are wispy and insulative. Birds have strong flight muscles and either monogamous or polygamous reproductive behaviors, where they build nests and care for altricial or precocial offspring after laying clutches of eggs.
All birds are in the Animalia Kingdom, Phylum of Chordata (with a backbone), and Class Aves (birds). At the Order level, the birds begin to diverge. For instance, the pelicans are in the Pelecaniformes Order while the nuthatches are in the Passeriformes Order.
All birds are in the Animalia Kingdom, Phylum of Chordata (with a backbone), and Class Aves (birds). At the Order level, the birds begin to diverge. For instance, the pelicans are in the Pelecaniformes Order while the nuthatches are in the Passeriformes Order.
Chordata is the last phylum of kingdom Animalia.
Which is further subdivided into subphylums, divisions and classes.
The Slides shows the classification of the phylum along with the basis on which it is classified.
(includes examples along with pictures for easy understanding and memorizing)
Insects, spiders, crabs, shrimp, millipedes, and centipedes are all arthropods. Arthropods have jointed feet, a segmented body, and an exoskeleton, a cuticle on the outside of their body. Arthropods have by far the greatest number of species of any animal group, at around 900,000 species
Unlike other animals, mammals have body hair, have 3 middle ear bones (the malleus, incus, and stapes), and nourish their young with milk that females produce in modified sweat glands that are called mammary glands.
Reptiles are a group (Reptilia) of tetrapod animals comprising today's turtles, ... The reptiles were, from the outset of classification, grouped with the amphibians. ... between lizards, birds, and their relatives on the one hand (Sauropsida)
Parental care in amphibians and reptilesayesha sahi
Any form of parental behavior that appears likely to increase the fitness of the parent’s offspring.
Parents of some animals go to great lengths to increase their offspring’s survival prospects by protecting them from predators, food shortages, desiccation, and a range of other environmental hazards.
First off all they decide the oviposition site.
Any place where small puddles of still water form can provide a suitable nesting site. Sites range from potholes, tapir tracks, and large leaves to human made ditches, road ruts, and even plastic bowls
Rheobatrachus females brooded tadpoles in their stomachs, and the young emerged from the females
In case of moor frogs, males stay to guard the clutch. They attack anyone who
approaches it! They do not leave the post until tadpoles hatch. Only then, starving fathers
go to land and may eat well.
This Power Point Presentation is based upon Aves, which is the scientific name of Birds. Many of the pictures used in this Power Point Presentation is animated. Hope this Presentation proves to be helpful for you.
Chordata is the last phylum of kingdom Animalia.
Which is further subdivided into subphylums, divisions and classes.
The Slides shows the classification of the phylum along with the basis on which it is classified.
(includes examples along with pictures for easy understanding and memorizing)
Insects, spiders, crabs, shrimp, millipedes, and centipedes are all arthropods. Arthropods have jointed feet, a segmented body, and an exoskeleton, a cuticle on the outside of their body. Arthropods have by far the greatest number of species of any animal group, at around 900,000 species
Unlike other animals, mammals have body hair, have 3 middle ear bones (the malleus, incus, and stapes), and nourish their young with milk that females produce in modified sweat glands that are called mammary glands.
Reptiles are a group (Reptilia) of tetrapod animals comprising today's turtles, ... The reptiles were, from the outset of classification, grouped with the amphibians. ... between lizards, birds, and their relatives on the one hand (Sauropsida)
Parental care in amphibians and reptilesayesha sahi
Any form of parental behavior that appears likely to increase the fitness of the parent’s offspring.
Parents of some animals go to great lengths to increase their offspring’s survival prospects by protecting them from predators, food shortages, desiccation, and a range of other environmental hazards.
First off all they decide the oviposition site.
Any place where small puddles of still water form can provide a suitable nesting site. Sites range from potholes, tapir tracks, and large leaves to human made ditches, road ruts, and even plastic bowls
Rheobatrachus females brooded tadpoles in their stomachs, and the young emerged from the females
In case of moor frogs, males stay to guard the clutch. They attack anyone who
approaches it! They do not leave the post until tadpoles hatch. Only then, starving fathers
go to land and may eat well.
This Power Point Presentation is based upon Aves, which is the scientific name of Birds. Many of the pictures used in this Power Point Presentation is animated. Hope this Presentation proves to be helpful for you.
ppt on flight adaptation
a well prepared ppt on the topic of bird's flight adaptation.
a good collaboration of knowledge on this topic , hope all of you like this
plz like and share if you like it
Through the process of evolution, few species of reptiles were transformed into modern birds.
This ppt describes about the similarities between reptiles and modern birds.
BODY PARTS OF CHICKEN
Comb
Eye
Eye ring
Ear
Earlobe
Wattle
Throat
Neck
Cape
Wing
Wingbow
Wing bar
Saddle
Fluff
Breast
Keel
Thigh
Leg
Hock
Shank
Spur
Feet
Claw
Sickle feathers
Primary feathers
Secondary feathers
Hackles
Tail feathers
EXTERNAL PARTS OF BIRDS The bird’s body is covered with a combination of skin, feathers and localized scales, with the latter being a derivative of reptiles.
1. Feathers: Birds are almost completely covered with feathers. During the evolutionary process of the poultry, most of the reptilian scales changed to feathers. Both scales and feathers are chiefly composed of the same protein and keratin. Feathers serve many purposes such as:
Helps in flying
Providing insulation from extremes of temperature (heat and cold)
Protection from rain and snow The condition of the feathers often serves to indicate whether a bird is sick or healthy.
The feathers serve as insulation and the heat loss is roughly proportional to the surface area of the body.
The weight of feathers apparently varies from about 4 to 8 per cent of live body weight with a difference being related to age, sex etc.
Older male birds have a lower percentage of feathers than the females and younger birds.
The number of feathers on birds in most of the breed varies from about 6,000 to 9,500.
The order of the appearance of the various feather tracts is: shoulder and thigh; rump and breast; neck, abdomen and leg; back, wing coverts and head.
2. Head: The head of the chicken includes the following parts:
a. Comb: There are several types of comb such as single, rose, pea, cushion, strawberry, walnut, V and butter cup. Out of this, single, rose and pea combs are common in commercial chicken. Comb type is the result of gene interaction, but comb size is associated with gonadal development and the intensity of light, either natural or artificial.
The functions of wattle & comb is for the purpose of thermoregulation, Indicating health and sexual maturity
b. Eyes: Poultry have the ability to differentiate various colours and have superior ability to focus and to detect movements. The avian eye is the finest ocular organ in the animal kingdom.
c. Eye lids: The prominent laterally located eyes are provided with upper and lower lids.
d. Eye rings: Inner margin of eyelids.
e. Eyelashes: Bristle feathers composed of a straight shaft.
f. Ears: Avian species are known for their keen sense of hearing. Their voice production and ability to intimate sounds infers an exceptional degree of pitch discrimination.
g. Earlobes: Fold of the skin just below the ears in fowls.
h. Wattles: The two red pendulous muscles on either side of the eye or near the beak.
i. Beak: The beak is a multi-functional organ of considerable importance. It is involved in procuring food, defence and aggression in social behaviour, courtship, nest making, grooming and communication. Its normal functions are often adversely affected by improper beak trimming.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
16. Nesting Activities
• Clutch-group of eggs and chicks produced by
a female.
• Altricial-birds that are entirely dependent
on their parents upon hatching.
• Precocial-alert and lively at hatching.
