Flashcards
Unit 2. The classification of living things
Flashcards do conjunto (4)
- 1VertebratesVertebrates are multicellular animals that have a spinal column. They are classified into five groups: mammals, reptiles, fish, birds and amphibians.
- 2InvertebratesInvertebrates area multicellular animals too but they don´t have a spinal column.
- 3Characteristics of mammalsRespiration: All mammals have lungs to breathe air
Mammals´bodies: Skin and hair cover mammals´bodies. In some animals, the hair is thick an called fur
Extremities: Most terrestrial mammals have four legs, but humans beings have two legs and two arms. Aquatic mammals sucha as whales and dolphins, have fins for swimming. Many terrestrial mammals also have a tail
Reproduction: Almost all mammals are viviparous. This means that female mammals give birth to live young. They produce milk to feed their young. - 4Characteristics of reptilesRespiration: Reptiles have lungs to breathe air
Reptile bodies: Reptiles have hard scales to protect their body. Some reptiles, such as tortoises and turtles, have a hard shell.
Extremities: Many reptiles have four legs, but snakes are reptiles that don´t have legs
Reproduction: Reptiles are oviparous animals. This means that their young are born from eggs. Reptiles lay their eggs on land.
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- 5 primaria Sciences (5º. UNIT 2: THE CLASSIFICATION OF LIVING THINGS) FlashCards sobre Unit 2. The classification of living things, criado por Isabel Hernán em 13-11-2015.
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