Birds evolved from feathered dinosaurs. Feathers allowed birds to travel long distances but also facilitated the spread of diseases like influenza. As hosts, birds can spread and amplify viruses. If vaccines were developed for birds, it could drastically reduce viral infections and possibly eliminate diseases. While feathers spread germs, scales provide more protection and do not spread diseases as easily. Understanding feather evolution can help prevent the spread of diseases from birds.
Order Neuroptera
Haseeb Kamran | Mphil Wildlife and Ecology GIS & Remote Sensing Lab | University of Veterinary and Animal Sciences, Lahore (Ravi Campus).
00923486311164
BIOLOGY ,HABITAT AND IMPORTANT DIAGONOSTIC FEATURES OF THE INSECT ORDER NEURO...sana sana
THIS SLIDE GIVES IMPORTANT DIAGNOSTIC FEATURES OF THE INSECT ORDER LIKE NEUROPTERA,TRICHOPTERA ,AND MECOPTERA. AND THIS ALSO INCLUDE LIFE CYCLE AND METAMORPHOSIS CHARACTERS OF THE ORDER MECOPTERA AND TRICHOPTERA.ITS GIVES A BRIEF DISCUSSION WITH SOME PICTURES
This is PowerPoint Presentation published in Elsevier Journal.
Link here: https://www.elsevier.com/books-and-journals/book-companion/9780128498859/presentation
The American indie-rock band, Cloud Nothings, that started in Cleveland, Ohio have now released their new album titled, Here and Nowhere Else. They had their first great album in 2012 titled, Attack on Memory, with singles “Stay Useless” and “Fall In” that showed off the bittersweet melodies of Dylan Baldi, the band’s founder and lead singer and guitarist.
This new album, Here and Nowhere Else, Baldi attempts to let go of their remaining “Hey Cool Kid” image and present the band as grisly and caustic. He hasn’t quite achieved that with this album and probably never will because Baldi writes great, hook-filled songs that are catchy and enjoyable. Although it doesn’t fit the image that Baldi is searching for, the album is still great.
This album is even brighter and more optimistic than Attack on Memory somehow, but the lyrics still seem like orders. In the song “Now Hear In,” the albums opener the singer states, “I can feel your pain/ And I feel alright about it.” The band has cleared away any verbal, instrumental, and even mental baggage to get right down to the point they want to make. However, even with shedding the excess baggage, the band has not gotten any tighter musically. The frays that occur here and there may actually inspire young, novice guitar players to try to imitate and play along, but this is a worthwhile role for a band to play for its fans.
The album, Here and Nowhere Else, is focused solely in one direction and moves towards that direction quickly and with a single tone throughout. This continuity between songs may feel like it is a less ambitious project, but really there is something captivating about the relentless beating in each piece. The music is a source of energy for the listener and it gives them freedom to think what they will about the music, rather than pushing an agenda.
Order Neuroptera
Haseeb Kamran | Mphil Wildlife and Ecology GIS & Remote Sensing Lab | University of Veterinary and Animal Sciences, Lahore (Ravi Campus).
00923486311164
BIOLOGY ,HABITAT AND IMPORTANT DIAGONOSTIC FEATURES OF THE INSECT ORDER NEURO...sana sana
THIS SLIDE GIVES IMPORTANT DIAGNOSTIC FEATURES OF THE INSECT ORDER LIKE NEUROPTERA,TRICHOPTERA ,AND MECOPTERA. AND THIS ALSO INCLUDE LIFE CYCLE AND METAMORPHOSIS CHARACTERS OF THE ORDER MECOPTERA AND TRICHOPTERA.ITS GIVES A BRIEF DISCUSSION WITH SOME PICTURES
This is PowerPoint Presentation published in Elsevier Journal.
Link here: https://www.elsevier.com/books-and-journals/book-companion/9780128498859/presentation
The American indie-rock band, Cloud Nothings, that started in Cleveland, Ohio have now released their new album titled, Here and Nowhere Else. They had their first great album in 2012 titled, Attack on Memory, with singles “Stay Useless” and “Fall In” that showed off the bittersweet melodies of Dylan Baldi, the band’s founder and lead singer and guitarist.
This new album, Here and Nowhere Else, Baldi attempts to let go of their remaining “Hey Cool Kid” image and present the band as grisly and caustic. He hasn’t quite achieved that with this album and probably never will because Baldi writes great, hook-filled songs that are catchy and enjoyable. Although it doesn’t fit the image that Baldi is searching for, the album is still great.
This album is even brighter and more optimistic than Attack on Memory somehow, but the lyrics still seem like orders. In the song “Now Hear In,” the albums opener the singer states, “I can feel your pain/ And I feel alright about it.” The band has cleared away any verbal, instrumental, and even mental baggage to get right down to the point they want to make. However, even with shedding the excess baggage, the band has not gotten any tighter musically. The frays that occur here and there may actually inspire young, novice guitar players to try to imitate and play along, but this is a worthwhile role for a band to play for its fans.
The album, Here and Nowhere Else, is focused solely in one direction and moves towards that direction quickly and with a single tone throughout. This continuity between songs may feel like it is a less ambitious project, but really there is something captivating about the relentless beating in each piece. The music is a source of energy for the listener and it gives them freedom to think what they will about the music, rather than pushing an agenda.
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.
1. Significance: An adaptive evolutionary trait of birds that
Introduction: The Aves class has always been an evolved from dinosaurs was feathers. They evolved from scales
interesting portion of the evolutionary tree of vertebrates. and allow birds to travel great distances, but this also created a
While observing their anatomy and physiology they appear to problem. The issue is that now they can also facilitate the spread
have characteristics of various classes. Birds are of diseases. Birds are reservoirs for certain diseases such as
bipedal, endothermic, egg-laying, feathered, vertebrates. Influenza and West Nile Virus. As a host, it allows the survival,
Birds’ feet have a keratinized outer layer (stratum corneum) amplification, and spread of these viruses. This is important to
that is homologous to the scales of reptiles. Birds also know in order to stop the spread of diseases. If vaccines could be
reproduce like reptiles by laying eggs. Aves have many created for birds, there could be a drastic decrease in these viral
characteristics that differ from most reptiles as well. Reptiles infections. It could also possibly lead to the elimination natural
are ectothermic while birds are endothermic. Birds also have reservoir, effectively killing the disease. Scales, however, do not
developed a four chambered heart and hollow bones to aid facilitate the spread of diseases. Infecting an animal with scales is
them in flight while reptiles have a three chambered heart and much harder because it provides more protection and does not
dense solid bones. As a result of these various carry germs as easily as feathers. The evolution of scales from
characteristics, it can be difficult for some to pinpoint where in dinosaurs to feathers of the modern day bird has had positive
history birds have made their evolutionary ascent. impacts on the species but are a growing concern for our
Understanding when and why in history certain traits have community.
developed, may help us better understand why certain
adaptations such as feathers result in greater survival. The Future Predictions: As feathers developed they have become
discoveries of certain fossils, like the Archeopteryx, have increasingly specialized in their form and function. Each Feather in a
helped evolutionary scientists and paleontologists to get a birds plumage has a specific use. Some feathers are used for insulation
better idea of where to place them. Certain diseases can also such as the penguins use of small feathers and down to keep warm in
be spread from feathers, so knowing more information on the cold temperatures of their environment (Du et al 2007). Some birds
feather evolution and morphology can help us better grow feathers that aid in long migratory flights like Migratory Blackcaps
understand how to prevent certain diseases. new fossils have
Evolutionary History: Well preserved and many (De La Hera et al 2007). Other feathers are specialized in color, size and
provided us with new evidence in respect to the evolution of dinosaurs even make up. The color of the feathers can be for attracting a mate
to birds from 1994-2004. Early dinosaurs were very small, but eventually such as with the peacock tail feathers (Roslyn and Robert 2011), or to
evolved with time. Theropods evolved the first feathers which provided help camouflage an individual (Stoddard et al 2011). We believe that as
waterproofing and insulation. Certain specimen such as the time continues and evolution shapes the uses of feathers that they will
Archeopteryx and Caudipteryx provide evidence of feathers showing up
become even more specialized. Alcids, a small water bird, have
on dinosaurs. Development of flight, four chambered hearts, and air
developed feathers that when we increase insulation so that the bird
sacks allowed birds to become more efficient in flight. During the
Mesozoic Era the avian assemblage is made up of two major lineages: stays warmer when it is in the water (Ortega-Jimez et al 2010). Other
the extinct Enantiornithes, and the Ornithurae. The Ornithurae gives rise possible adaptations include increased water resistance, increased
to all modern birds. Much of the diversity of the bird species are variation in color and patterns, larger primary feathers to allowing for
highlighted in the Early Cretaceous Era. Much controversy still increased glide ability, and decrease in down size to allow for more
surrounds many of these findings and we still require more evidence and smaller feathers to help insulate.
information to better understand the evolution of birds.
References: