explain how animals in vertebrata are classified into further subgroups.

Expert Answers

An illustration of the letter 'A' in a speech bubbles

Vertebrata are classified into five groups based upon several characteristics.

Warm vs Cold blooded, mammals & birds vs fish, reptiles, & amphibians.

Mammals & birds can be differentiated by hair or fur vs feathers.

Mammals also have mammory glands so the females feed milk to their young.

Reptiles have dry scaly skin and lungs.

Amphibians have moist skin (not scales) and gills when young and lungs as adults.

Fish have gills throughtout life and live in water.

Approved by eNotes Editorial Team

We’ll help your grades soar

Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now.

  • 30,000+ book summaries
  • 20% study tools discount
  • Ad-free content
  • PDF downloads
  • 300,000+ answers
  • 5-star customer support
Start your 48-Hour Free Trial