Sophia Learning
Sophia: Animals: Vertebrates: Lesson 3
This lesson will explain the characteristics of animals that are classified as vertebrates. It is 3 of 4 in the series titled "Animals: Vertebrates."
Sophia Learning
Sophia: Animals: Invertebrates: Lesson 3
This lesson will explain the characteristics of animals that are classified as invertebrates. It is 3 of 4 in the series titled "Animals: Invertebrates."
Sophia Learning
Sophia: Animals: Invertebrates: Lesson 4
This lesson will explain the characteristics of animals that are classified as invertebrates. It is 4 of 4 in the series titled "Animals: Invertebrates."
Sophia Learning
Sophia: Animals: Vertebrates: Lesson 4
This lesson will explain the characteristics of animals that are classified as vertebrates. It is 4 of 4 in the series titled "Animals: Vertebrates."
Curated OER
Science Kids: Science Images: Polar Bear With Cubs
This photo shows a polar bear with two cute cubs sitting in the snow. Polar bears are native to the Arctic Circle and are classified as a vulnerable species. Polar bears are the largest type of bear and also the largest carnivores that...
Other
Alternative Classifications of Life
The Linnaean system (1758) classified all macroscopic living organisms as either Animals or Plants, based on whether they moved [anima, with a soul] or not. Thus, Fungi were included as plants. With the invention of the microscope and...