Question

what are the 3 characterstics of each of the following (3 examples).

a.mammals b.amphibian c.fishd.reptile e.bird​

Answer 1

Answer:

Explanation:

a) According to the University of Michigan Museum of Zoology, there are only three characteristics unique to mammals. The three characteristics are mammary glands, hair and three middle ear bones. Other characteristics often thought to be unique to mammals are found in other species including birds, insects and reptiles.

b) Five Characteristics of Amphibians

• Unshelled Eggs. Living amphibians produce much different eggs than strictly terrestrial organisms like reptiles do.  
• Permeable Skin. While caecilians have scales similar to fish, most other amphibians have moist, permeable skin.
• Carnivorous Adults.  
• Distribution.  
• Courtship Rituals.

c) These characteristics include:

• Live in water their entire lives.
• Vertebrates have a backbone, and some cartilaginous fish have vertebrae made of cartilage rather than calcium-hardened bone.
• Gills, which are slits on both sides of fish that allow for respiration, or the exchange of oxygen and carbon dioxide

d) General Features

• All reptiles have a backbone, which means they are vertebrates.
• All reptiles produce eggs. Most reptiles lay hard-shelled eggs, but a few give birth to live young.
• All reptiles have scales or scutes.  
• Reptiles are ectothermic or cold-blooded, which means they cannot control their own body temperature.

e) There are five traits that make a bird a bird.

• Feathers. Feathers are an obvious trait.
• Wings. All birds have wings, but not all birds fly.
• Beaks or Bills. Beaks or bills are another characteristic of birds.  

• Laying Eggs. All birds lay eggs

• Adapted Skeleton.