SCIENCE
DESCRIBE THE CHARACTERISTICS OF THE FOLLOWING.
1. VERTEBRATES
2. INVERTEBRATES
3. MAMMALS
4. BIRDS
5. REPTILES
6. AMPHIBIANS
7. FISHES
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SCIENCE
DESCRIBE THE CHARACTERISTICS OF THE FOLLOWING.
1. VERTEBRATES
2. INVERTEBRATES
3. MAMMALS
4. BIRDS
5. REPTILES
6. AMPHIBIANS
7. FISHES
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Answer:
1.A vertebrate is an animal that has a backbone and a skeleton. ... It especially refers to animals with a backbone, which protects their spinal cord. Vertebrates have many bones, including a skull which protects their brains, which tend to be large.
2.Invertebrates are animals without a backbone or bony skeleton. They range in size from microscopic mites and almost invisible flies to giant squid with soccer-ball-size eyes. This is by far the largest group in the animal kingdom: 97 percent of all animals are invertebrates.
3.Mammals have hair or fur; are warm-blooded; most are born alive; the young are fed milk produced by the mother's mammary glands; and they have a more complex brain than other animals.
4.any warm-blooded vertebrate of the class Aves, having a body covered with feathers, forelimbs modified into wings, scaly legs, a beak, and no teeth, and bearing young in a hard-shelled egg. a fowl or game bird.
5.Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both. They include crocodiles, snakes, lizards, turtles, and tor- toises. ... Unlike birds and mammals, reptiles do not maintain a constant internal body temperature.
6.Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders, and newts. All can breathe and absorb water through their very thin skin. ... The larvae are aquatic and free-swimming—frogs and toads at this stage are called tadpoles.
7.A fish is an animal which lives and breathes in water. All fish are vertebrates (have a backbone) and most breathe through gills and have fins and scales. ... The 25,000 known species of fish are divided into three main groups. There are three classes of fish: jawless, cartilaginous, and bony.
Explanation:
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