HideShow resource information
Classification means grouping things by their features or characteristics. The more characteristics that are used to group similar organisms together, the more reliable is the classification
1 of 24
Group of similar phyla e.g Animalia
2 of 24
group of similar classes e.g chordata
3 of 24
Group of similar orders e.g mammalia
4 of 24
Group of similar families e.g Carnivora
5 of 24
Group of similar genera e.g Canidae (dog Family)
6 of 24
Group of similar species e.g canis
7 of 24
Organisms that have most characteristics in common
8 of 24
Multicellular (body made of many cells) Have no cell walls no chlorophyll in cells feed Heterotrophically (Eat other organisms
9 of 24
Multicellular, cell walls,chlorophyll, feed Autrophically (make own food)
10 of 24
Multicellular, Cells walls, no chlorophyll feed Saprophytically (Digest food outside the body)
11 of 24
Vertebrates and Invertebrates
The phylum chordata contain animals that have a supporting rod running the length of their body. Many animals are vertebrates (animals with backbone)
12 of 24
Oxygen absorbton
blue area: use of gills green area: use of lungs Note: young amphibians use gills, but adult amphibians use lungs.
13 of 24
Inside female body (internal) outside females body (external)
14 of 24
young born lives (vivparous) lay eggs (Oviparous)
15 of 24
control own body temperature (Homotherm) body temperature varies with environment temperature (Polkilotherm)
16 of 24
A species is a group of organisms that can breed with each other and produce fertile offspring. A few species can interbreed (breed with other species) to produce hybrid offspring, but often these Hybrids are sterile (cannot produce offspring).
17 of 24
Problem 1
Some species reproduce asexually from parts of their body or by dividing in two If we do not see two organisms breeding together we cannot be sure if they are the same species
18 of 24
Problem 2
Some organisms from closely related species can interbreed and produce hybrid offspring that are fertile
19 of 24
A key
Based on obvious characteristics can help identify different species. This is a key for some big cats
20 of 24
Binomial Classification
Every species has a unique Binomial name, for example the African lion Panthera leo. Bionomial names are useful because other people know exactly which species you mean. You can see from the genus which species are very closely related.
21 of 24
panthera leo
Genus name: shared with very similar species. species name: unique to African lion. The leopard ( Panthera Pardus) and the tiger (Panthera Tigris) are closely related to the lion so have the same genus name.
22 of 24
Classification Complications
Classifying an organism within a particular species may not easy. Dogs show a wide range of variation but all belong to one species. Duck species will occasionally interbreed to produce individuals with a range of characteristics.
23 of 24
Ring Species
The European herring gull and lesser black-backed gull rarely interbreed,even where they nest together. So we say they are different species. But they are the end of a ring species of gulls that surrounds the North Pole. Neighbouring species of gulls
24 of 24

Other cards in this set

Card 2


Group of similar phyla e.g Animalia



Card 3


group of similar classes e.g chordata


Preview of the back of card 3

Card 4


Group of similar orders e.g mammalia


Preview of the back of card 4

Card 5


Group of similar families e.g Carnivora


Preview of the back of card 5
View more cards


No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Adaptations of organisms to their environment resources »