characteristics of living organism Flashcards
list characteristics of living organsim
movement
respiration
sensitivty
growth
reporduction
excretion
nutrition
Define species
Species are a group of organisms that can reproduce to produce firtile offspring.
Organism can be classified into groups by….
features the share
Define binomial system
The binomial system is an internationally recognised system of naming species based on 2 parts the first part containing the genus and second the species
Sequences of bases in DNA
Sequences of bases in DNA can be used to show how closely related organisms are as organisms that share more sequences of bases in DNA are deemed to be more closely related then organism that share more differences in sequence of bases in DNA
Plants Characteristics
they are multicellular
they have no nucleus, chloroplasts and cell wall made on cellulose
all feed by photosynthesis
Animals Characteristics
multicellular
have nucleus and cell membrane but no cellwall or chloroplasts
they feed on organic matter
Mammals Characteristics
have pinna
give birth to live young ones
they breast feed
they have fur or hair
Birds Characteristics
2 legs
2 wings
have a beak
have feathers
reptiles Characteristics
have dry fixed scales
lay eggs on land
myriapods Characteristics
have segmented bodies
each segment has atleast on pair of jointed legs
have a pair of antennae
insects characteristics
have 3 part body
have a pair of anttenae
have 2 pairs of wings
3 pairs of jointed legs
arachnids characteristics
2 parts bodies
have 4 pairs of jointed legs
have no antennae
Crustaceans characteristics
they have a chalky exoskeleton made of calcium
they have more then 4 pairs of jointed legs
they have antennae
Fungi characteristics
they are usually multicellular
they have nuclues and cell wall not made of cellulose but rather chitin
they feed on dead or decaying matter the are saphroytic
