Page 1 Flashcards
(18 cards)
List the levels of classification in order, starting with the kingdom.
Kingdom Phylum Class Order Family Genus Species
Name the 5 Kingdoms.
Animalia Plantae Fungi protoctisa prokaryotes
Describe the symptoms of cystic fibrosis.
Thick and sticky mucus in lungs/airways: respiratory problems.
Affects gut and pancreas, so food is not digested efficiently.
Which level of classification is made up of several families?
Order
Describe the main characteristics of Animalia.
Multicellular
do not have cell walls
do not have chlorophyll
feed heterotrophically
Describe the main characteristics of Plantae.
Multicellular
have cell walls
have chlorophyll
feed autotrophically
Describe the main characteristics of fungi.
Multicellular
have cell walls
do not have chlorophyll
feed saprophytically
Describe the main characteristics of Protoctista
Unicellular
have a neucleus
Describe the main characteristics of Prokaryotes.
Unicellular
have no necleus
Why are viruses not classified as living?
They can only reproduce when inside another cell: not on their own.
Describe the main characteristics of the phylum Chordata.
Animals with a supporting rod (notochord) running the length of the body, an example of this being the backbone in vertebrates.
What 3 characteristics are vertebrates classed according to?
Oxygen absorption methods
Reproduction
Thermoregulation
Which oxygen absorption methods are used by vertebrates?
Through the lungs, gills and skin.
Which reproduction methods are used by vertebrates?
Internal or external fertilisation
oviparous or viviparous
Which forms of thermoregulation do vertebrates use?
homeothermy and poikilothermy
What is a Homeotherm?
A vertebrate that can regulate its own body temperature internally
e.g. mammal
What is a poikilotherm?
A vertebrate that cannot regulate an internal body temperature but instead relies in the environment to warm up
e.g. reptile.
Why is a duck-billed platypus difficult to classify?
It has features of a mammal (hair, suckles young) but a bird-like bill and lays eggs like a bird or reptile.
