Question

write an essay on birds ​

Answer 1

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Birds are some of the most amazing animals on earth. Most have the ability to fly. Some use ground travel. Some use claws, others use only their beaks. Birds come in many varieties of colors and sizes.

Birds are warm-blooded, egg-laying creatures from the aves class. Along with the obvious feathers and wings, birds have other adaptations for flying such as a wide keel on the sternum, with large wing muscles attached, air spaces and sacs throughout the body and bones, to decrease their weight, and they have various bone fusions and reductions to strengthen and streamline their body.

There are more than 8700 species of birds. Their habitats …show more content…

Archaeopteryx , unlike modern birds, had teeth, a reptile like tail, and three claws on each wings.

Scientists think it could fly, but only weakly.

Approximately 85 species and 50 sub species have become extinct in the last 300 years. Over half of them occurred in the 1800’s. Another thirty percent occurred in the 1900’s. Over ninety percent of these extinction’s were island forms, which are particularly vulnerable to human interference. Destruction of habitat is the biggest cause of extinction. Other causes are the introduction of predacious animals, and disease plays it’s part too.

The respiratory system in birds serves to transfer oxygen to the bird’s bloodstream. Unlike mammals, birds do not have sweat glands. So they cannot cool themselves through perspiring. Air sacs throughout the body are connected to the lungs. As the bird breathes, the air sacs help cool the birds organs.

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Answer 2

Holaaa Mate

✔Answer:

⭕Birds are special kind of animal species with certain specific characteristics that are common to all of them. All of them are feathered, winged, bipedal (meaning: having two legs), egg-laying, warm blooded, vertebrate animals belonging to the class Aves. They are an important part of the ecosystem and are present across the globe from the Arctic to the Antarctic.

⭕Birds inhabit the environment that suits them and that is what separates the species found in Polar Regions from those in the Tropical Region. In spite of all the similarities that the bird species share, they have certain unique characteristics which differentiate them from others.

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