OBJECTIVE FORESTRY

Detailed explanation-1: -The 5 groups of vertebrates (animals that have a backbone) are fish, amphibians, reptiles, birds, and mammals.

Detailed explanation-2: -“Nearly all mammals have the same number of cervical vertebrae, no matter how long or short their necks are–humans, giraffes, mice, whales, and platypuses all have exactly seven cervical vertebrae, ‘’ explains co-author Jeff Spear, an NYU doctoral student.

Detailed explanation-3: -We are all vertebrates, or animals with backbones. Vertebrates use their backbones for movement and support. Vertebrates share other traits as well: an internal skeleton, muscles, a protective skin, blood that circulates through vessels, and an advanced nervous system, including a head with a brain.

Detailed explanation-4: -Invertebrate or Vertebrate? Approximately 97% of animals on our planet are invertebrates, or animals with no backbone. When we think of “animals, ‘’ we often think of vertebrates (animals with backbones) like lions, tigers, bears and, of course, humans.