0
1-feathers!
2- cranial features:
single occipital condyle
quadrate-articular jaw hinge
single ear ossicle
bill formed from premaxillary
cranial kinesis
large brain case
fusion of bones
3- reduction of skeletal weight
4- nucleated red blood cells (similar to amphibians, reptiles, and fish)
5- embryology- with egg and yolk
What else can I help you with?
Do all birds have four toes?
No, not all birds have four toes. While most birds do have four toes, some species have fewer or more toes based on their evolutionary adaptations. For example, ostriches only have two toes, while most songbirds have three toes pointing forward and one toe pointing back.
What does a oologist study?
An oologist studies birds' eggs, including their formation, characteristics, and collection.
How are birds classified?
Birds are classified based on various characteristics such as their physical features, behavior, and evolutionary history. They are typically categorized into different groups including orders, families, genera, and species. Classification is based on shared characteristics and evolutionary relationships among different bird species.
What are the characteristic of birds?
The characteristics that qualify birds are:warm blooded (endothermic)vertebrates (they have a backbone and an internal skeleton)breathe using lungs (not gills)an outer covering of feathers - this feature is not shared with any other vertebrate groupreproduce by laying eggsOther features which are characteristics of birds, but not used to set them apart from other vertebrate groups, include:All birds have wings, but not all birds fly: generally, there is reduction of skeletal weightBirds have beaks or bills, and do not have teethBirds have two legsBirds have a cloaca, a cavity into which the intestinal, urinary, and genital canals emptyBirds have nucleated red blood cells, unlike mammalsBirds have a chambered hearthave 2 wings feathers beak and lay eggsThe characteristics that qualify birds are: warm blooded (endothermic)vertebratesbreathe using lungs (not gills)reproduce by laying eggs
Can you give me a long list of the talking birds?
You can find a list of birds when you visit your public library. At the library you can see books about birds and books with lists and pictures of every bird ever discovered.
What are the four characteristics of birds?
Birds have many characteristics, but all birds share four specific traits. Four chambered heart, hollow bones, diapsid skull, reversed toes, and a fused collarbone are traits that all birds share.
What are characteristics of aves?
Birds.
List four characteristics of the early Church Christians?
Good,Responsible,Lovable,Generous
List the characteristics of a geologic formation?
list all of the characteristics of a geologic formation?
Which characteristics of birds make them different from reptiles?
Birds are warm-blooded.
What characteristics do birds that swim have?
they poo
What are the four types of animals?
There are four main classes of animals: Mammals (Mammalia), Birds (Aves), Reptiles (Reptilia), and Fish (Chondrichthyes, Agnatha, Placodermi, Actinopterygii, Sarcopterygii).
What is an fact about birds?
Birds have four chamber heart!
Characteristics of animals with 2 legs?
they are birds
What mammals have bird like characteristics?
birds
List the four characteristics of a Nation State?
A "state" (nation-state) has Population, Territory, Soverignty, and Government.
How many birds have a four-chambered heart?
All humans have four chambers in their heart.
