Podcast
Questions and Answers
What are the individual disc-shaped bones that make up the spine commonly referred to as?
What are the individual disc-shaped bones that make up the spine commonly referred to as?
- Vertebrae (correct)
- Craniums
- Phalanges
- Cartilages
Approximately how many vertebrae are present in the human spine, as mentioned in the text?
Approximately how many vertebrae are present in the human spine, as mentioned in the text?
- 66
- 206
- 33 (correct)
- 500
Which of the following animal classes is classified as vertebrates?
Which of the following animal classes is classified as vertebrates?
- Crustaceans
- Arachnids
- Reptiles (correct)
- Insects
Which of the following groups of animals is classified as invertebrates?
Which of the following groups of animals is classified as invertebrates?
What percentage of the animal world do invertebrates constitute?
What percentage of the animal world do invertebrates constitute?
Based on the examples provided, which animal possesses the highest number of vertebrae?
Based on the examples provided, which animal possesses the highest number of vertebrae?
What is the defining characteristic of a vertebrate animal?
What is the defining characteristic of a vertebrate animal?
What is a common feature shared by all invertebrate animals?
What is a common feature shared by all invertebrate animals?
Which of the following statements accurately compares the number of vertebrae in different vertebrates?
Which of the following statements accurately compares the number of vertebrae in different vertebrates?
What is another term used by scientists to refer to the 'backbone'?
What is another term used by scientists to refer to the 'backbone'?
Flashcards
Spine
Spine
A series of disc-shaped bones that are connected together forming the backbone.
Vertebra
Vertebra
One of the disc-shaped bones that make up the spine.
Vertebrates
Vertebrates
Animals with an internal skeleton made of vertebrae.
Invertebrates
Invertebrates
Signup and view all the flashcards
Five classes of vertebrates
Five classes of vertebrates
Signup and view all the flashcards
Amphibians
Amphibians
Signup and view all the flashcards
Fishes
Fishes
Signup and view all the flashcards
Reptiles
Reptiles
Signup and view all the flashcards
Birds
Birds
Signup and view all the flashcards
Mammals
Mammals
Signup and view all the flashcards
Study Notes
The Backbone and Spine
- The spine, or backbone, is a series of interconnected disc-shaped bones called vertebrae.
- Humans have 33 vertebrae.
- Feeling along the middle of your back will reveal a series of bumps, each representing a vertebra.
- Vertebrates are animals with an internal skeleton made of vertebrae.
Vertebrate Animal Classes
-
Amphibians (frogs, newts)
-
Fishes (tuna, sharks)
-
Reptiles (snakes, alligators)
-
Birds (parrots, penguins)
-
Mammals (monkeys, dolphins)
-
Different vertebrate species have varying numbers of vertebrae. For example, alligators have about 66, and snakes can have as many as 500.
Invertebrates
- Invertebrates are animals without a spine, meaning they lack vertebrae.
- Invertebrates are far more numerous than vertebrates. About 98% of animal species are invertebrates.
- Examples of invertebrates include insects, spiders, worms, sponges, jellyfish, sea stars, sea urchins, squids, octopuses, crabs, shrimp, and lobsters.
Vertebrates vs. Invertebrates
- Invertebrates outnumber vertebrates significantly, comprising approximately 98% of the animal kingdom.
- Vertebrates comprise only about 2% of animal species.
- Millions of invertebrates still remain undiscovered.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
