Studied by 5 people
what is a characteristic
a feature relating to a person, place, or thing
what is an organism
a living thing
what are characteristics of organisms
study of living things
what are the seven characteristics of living things
movement, respiration, sensitivity, growth, reproduction, excretion, nutrition
what is movement
change of position of full body or just a part
what is respiration
breaking down glucose to release energy
what is sensitivity
being responsive to surroundings
what is growth
Permanent increase in size and dry mass
what is reproduction
Making new organisms as an organism
what are the two types of reproduction
sexual and asexual
what is excretion
Removing waste and excess substances from body
what is nutrition
Taking in substances for energy or make new cells
how many characteristics are there to check if something is living?
seven
what is dry mass
mass of something with all water removed
example of internal environment
homeostasis
example of external environment
feeling sunlight on you
how many parents in asexual reproduction
one
how many parents in sexual reproduction
two
which is quicker? Asexual or sexual
asexual
which produces a unique offspring. Asexual or sexual reproduction?
sexual
what is the biological classification system or what does it do
Process of arranging organisms into groups based on similar characteristics
what is a species
smallest groups you can classify
what is the binomial system
a system of naming organisms by giving a name consisting two terms wha
what are the two terms in the binomial system
genus and species
what does Bi mean
two
what is the binomial name for humans
Homo saponins
what is a dichotomous key
a naming key that leads to a new pair by branching into two
what key is this?
dichotomous key
How many kingdoms are there for IGCSE
5
what are features of the animal kingdom with the cells
nucleus, no cell wall, no chloroplast
what do animals feed on
organic substances
are animals vertebrates or invertebrates
vertebrates
features of a plant regarding its cells
cell walls, contain chloroplasts
What does chlorophyll help with
absorb light energy
how do plants get their energy
photosynthesis
two types of skeletons
exoskeleton and endoskeleton
animal types with exoskeletons
insects, arachnids, crustaceans
what are fungi made up of
hyphae
what are hyphae
microscopic, thin threads of mycelium that link together
how do fungi feed
decaying matter, on or in a body
how do fungi reproduce
spreading pores through wind or animals
where fungi is commonly used
bread, alcohol, penicillin
are fungi multicellular or unicellular
both but mainly multicellular
are animals multicellular or unicellular
multicellular
are plants multicellular or unicellular
multicellular
what is a prokaryote
bacteria
features of bacteria cells
no mitochondria, have plasmids
are bacteria multicellular or unicellular
mostly unicellular
list vertebrates
fish, amphibians, reptiles, birds, mammals,
features of a fish
gills, fins, scales
where do fish lay egss
in water
how are the eggs of fish
no shell
features of amphibians
no scales, smooth, watery skin, adults have lungs
where do amphibians lay eggs
in water
what is metamorphosis
transformation from an immature form to an adult form in distinct stages
why do amphibians larvae have gills
grow and live in water
reptile features
scales
reptile egg features
waterproof shell
where do reptiles lay eggs
on land
birds features
feathers, wings, beaks, four chamber heart
what does endothermic mean
constant body temperature regardless
birds eggs feature
hard shell
mammal features
fur, placenta, four chamber heart, different teeth types
list types of invertebrates
arthropods, insects, crustaceans, arachnids, myriapods
arthropods features
jointed legs, exoskeletons
insect features
six legs, pair of wings, head, thorax, abdomen
crustaceans features
more than 8 legs, gills, two pairs of antenna
arachnids features
8 legs, gills, no antenna, two part body
myriapods features
one pair of antenna, one segment; own set of legs
what is a flower plant
plants that reproduce using flowers
what is a cotyledon
part of the embryo within the seed of a plant
how many cotyledons
one
monocotyledon leaves have:
parallel veins
monocotyledon flower parts are in:
3
monocotyledon roots come out:
directly out the stem
how are vascular bundles arranged in monocotyledons
randomly
types of roots for monocotyledons
fibrous root system
monocotyledon or dicotyledons root system?
monocotyledon
monocotyledon or dicotyledons
monocotyledon
monocotyledon or dicotyledons
monocotyledon
monocotyledon or dicotyledons
dicotyledons
monocotyledon or dicotyledons
dicotyledons
monocotyledon or dicotyledons
dicotyledons
dicotyledon flowers are in parts of:
4s and 5s
leaves for dicotyledons
network of veins
what do viruses do
cause common diseases
how do viruses work
copy themselves to spread
why is it said virus cells are not alive
don’t display living characteristics and need a cell to live
What’s this in the diagram
Virus
What cell is this
animal cell
what cell is this
plant cell
what cell is this
Protoctista
what cell is this
prokaryote/bacteria
features of protoctista
have a nucleus, cell walls
are Protoctista multicellular or unicellular
both
Note
Flashcard