Characteristics And Classification Flashcards
Movement
An action done by an organism or part of an organism resulting in a change in position or place
Respiration
Chemical reaction that takes place in cells that breaks down nutrient molecules to release energy for metabolism
Sensitivity
Ability to detect and react to changes in the internal and external environment
Growth
Permanent increase in size and dry mass
Reproduction
Making more of the same kind of organism
Excretion
Removal of the waste products of metabolism and substances in excess of requirement
Nutrition
Taking in of substances for growth development and energy
Species
A group of organisms that reproduce to produce fertile off spring
Binomial system
An international ally agreed system in which the scientific name of a species consists of two parts, the genus and the species
How is dna used in classification
DNA sequences are used to code for amino acid sequences in proteins
Myriapods
- body made up of segments
- each segment has one pair of jointed legs
- one pair of antennai
Insects
- three past body
- 2 pairs of wings
- 3 pairs of jointed legs
- 1 pair of antenai
Arachnids
- 2 part body
- 4 pairs of jointed legs
- no antennai
Crustacean
- chalky exoskeleton
- more than 4 pairs of jointed legs
- 2 pairs of antennai
Bacterial cell
- cell membrane
- circular loop of dna
- plasmid
- ribosome
- cytoplasm
- cell wall made form peptidoglycan
Plants
- split into two groups
- flowering
- ferns
- ferns produce through spores
- flowering plants produce through flowers and Seeds
- mono cots - multiples of 3 - parallel leaf
- do Cots- multiples of 4 and 5 - reticulated leaf veins
Viruses
- structure: - DNA/RNA, envelope, protein coat
- not living things
- they don’t carry out the life processes instead take over a shots cells metabolic path way I order to copy themselves
Fungi
- multi cellular
- have nucleus and cell wall not made of chloroplast
- parasitic or saprophytic nutrition
Protoctists
- most unicellular some multicellular
- all have nucleus some have cell wall and chloroplast
- some photosynthesis some feed on organic substances
Prokaryotes
- unicellular
Have cell wall and cytoplasm - don’t have nucleus and Mitochondria
