Vertebrates and Invertebrates

There are more than ____ species of mammals on Earth.

• 5000

• 7000

• 9000

• 20,000

Mammals are divided into ____ groups based on how they give birth.

• 2

• 3

• 4

• 5

Characteristics of mammals include ____ [multiple answers]

• hair or fur covering the body

• has a backbone

• nourish their offspring with milk

• breathe using lungs

• warm blooded

Monotremes are mammals that

• lay eggs

• have babies that further develop inside a pouch

• carry their baby inside their body and gives birth to a live baby

• are all extinct

Marsupials are mammals that

• lay eggs

• have babies that further develop inside a pouch

• carry their baby inside their body and gives birth to a live baby

• are all extinct

Placental mammals ___

• lay eggs

• have babies that further develop inside a pouch

• carry their baby inside their body and gives birth to a live baby

• are all extinct

Examples of Montremes are _____ [2 answers]

• Echidna

• Duck Billed Platypus

• Quoll

  Southern Ninguai

• Kangaroo

  Itjaritjari

• Numbat

  Striped Possum

Examples of Marsupials are _____ [3 answers]

• Echidna

• Duck billed Platypus

• Quoll

• Kangaroo

• Striped Possum

  Numbat

Tags

NGSS.3-LS3-1

Examples of Placental mammals are _____ [multiple answers]

• Echidna

  Duck Billed Platypus

• Humans

  Lion

  Cow

• Quoll

  Southern Ninguai

• Blue Whale

  Horse

  Monkey

• Striped Possum

  Numbat

  Itjaritjari

Tags

NGSS.MS-LS4-2

Placental mammals carry their young inside a _____ which is a solid disc of

blood-rich tissue that attaches to the wall of the uterus to 

support the developing embryo

• egg

• placenta

• pouch

• car seat