Discover how IDNLearn.com can help you find the answers you need quickly and easily. Our experts provide accurate and detailed responses to help you navigate any topic or issue with confidence.

Answer the following questions:

a. Differentiate between vertebrates and invertebrates.

b. Write two main characteristics of the five classes of vertebrates, giving an example of each.

c. Name the breathing organs of the following animals:
i. Mammals
ii. Reptiles
iii. Aves
iv. Pisces

d. Draw and label the external structures of a fish and a bird.


Sagot :

Final answer:

The answer explains the differences between vertebrates and invertebrates, characteristics of vertebrate classes, breathing organs of various animals, and the external structures of a fish and a bird.


Explanation:

Vertebrates vs. Invertebrates: Vertebrates have a vertebral column, while invertebrates lack a backbone. Vertebrates include mammals, birds, reptiles, amphibians, and fish, whereas invertebrates encompass various phyla such as Arthropoda and Mollusca.

Main characteristics of vertebrates:

  1. Fish: Cartilaginous fish have a skeleton made of cartilage, such as sharks. Ray-finned fish have bony rays in their fins, like trout.
  2. Amphibians: They have moist skin for respiration, like frogs, and undergo metamorphosis.

Breathing organs:

  • Mammals: Lungs
  • Reptiles: Lungs
  • Aves: Air sacs and lungs
  • Pisces: Gills

External structures of a fish: Examples are gills and fins. External structures of a bird: For instance, wings, beak, and feathers.


Learn more about Vertebrates, Invertebrates, Comparative Anatomy here:

https://brainly.com/question/37145434