animal groups

Question 1

what characterises a mammal

Answer 1

• endothermic (warm blooded)
• live on land
• fur
• mammary glands
• most give birth to live young
• lungs
• 4 chambered heart
• Highly developed brain and nervous system

Question 2

what characterises aves

Answer 2

• warm blooded
• feathers
• hard shelled eggs
• air sac system
• 4 chambered heart
• hollow bones
• vertebrate

Question 3

what characterises reptiles

Answer 3

• cold blooded
• scales / dry skin
• leathery shelled eggs
• 3 chambered heart
• vertebrates

Question 4

what characterises amphibians

Answer 4

• cold blooded
• moist, permeable skin
• metamorphosis (tadpole to frog process)
• unshelled eggs
• gills, lungs and skin
• land or water
• 3 chambered heart
• vertebrate

Question 5

what characterises fish

Answer 5

• cold blooded
• vertebrates
• gills
• fins for movement
• scales protect body

Question 6

what characterises invertebrates

Answer 6

• no backbone
• cold blooded
• simple nervous system
• different classifications of inverts