respire, show irritability and movement, nourish themselves, grow, develop, excrete, reproduce
1 of 21
variation
the offspring are often different from one another and from their parents
2 of 21
energy
is necessary to carry out their life processes
3 of 21
respiration
the chemical reactions that break own nutrient molecules in living cells to release energy for metabolism
4 of 21
irritability
the ability to detect or sense changes in the internal or external environment and to make appropriate responses
5 of 21
movement
an action by an organism or part of an organism causing a change of position or place
6 of 21
growth and development
the processes by which an organism changes in size and form, usually these changes are permanent
7 of 21
excretion
removal from organisms of toxic materials, the waste products of metabolism and substances in excess of requirement
8 of 21
reproduction
the processes that make more of the same kind of organism - new individuals (e.g. offspring, new cells)
9 of 21
classification
the science of placing organisms into categories on the basis of their observable characteristics
10 of 21
conservation
scientists need to be able to identify different organisms in habitats which are being managed and they need to control which organisms are used in breeding programmes
11 of 21
understand evolutionary relationships
organisms which have many of the same features are normally descended from common ancestors
12 of 21
classification key
categorising living organisms by identifying and sorting ther according to common characteristics
13 of 21
morphology
the shape of organisms
14 of 21
anatomy
the structure of organisms
15 of 21
five kingdoms
prokaryotae, protoctista, fungi, plantae, animalia
16 of 21
hierarchy of classification
kingdom, phylum, class, order, family, genus, species
17 of 21
protein structure
organsims which are closely-related have very similar animo acid sequences in proteins (e.g. haemoglobin)
18 of 21
DNA structure
closely-related organisms have very similar base sequences in DNA because there has been less 'evolutionary time' for mutation to change these base sequences
19 of 21
viruses
don't show the typical features of living things, unless they are inside of another living organism
20 of 21
virus structure
genetic material - may be DNA or RNA, but always a single strand, protein coat - protects the single strand of nucleic acid, made of many subunits, spikes - may contact and recognise the cell to be infected
21 of 21
Other cards in this set
Card 2
Front
the offspring are often different from one another and from their parents
Back
variation
Card 3
Front
is necessary to carry out their life processes
Back
Card 4
Front
the chemical reactions that break own nutrient molecules in living cells to release energy for metabolism
Back
Card 5
Front
the ability to detect or sense changes in the internal or external environment and to make appropriate responses
Comments
No comments have yet been made