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Transcript
B50
Sense organs?
Stimulus
D
E
C
B
A
F
Synapses?
Response
Impulse type:
Neurone
Synapse
Internal controls: how/why?
Hormones
Water content
Secreted
by
Ion content
Temperature
Blood sugar level
IVF
Controlling
fertility
Contraception
Fertility drugs
Name of
hormone
Made in the
Activity
FSH
1.
2.
Oestrogen
1.
2.
3.
LH
1.
B51
Transported
by
Testing drugs
Legal
In the
lab
Prescribed
Impact
Volunteers
Clinical
trials
Cannabis
Placebo
Thalidomide
Developed as a …
Caused …
Then …
Now…
Addiction
Patients
Double-blind
Used for…
Illegal
Statins are
used for…
Need new ones
because
B53
eg
involves
Vaccination
Leads
to
Defences
Identify
by
White
blood
cells
Disease
causers
Types of microbe
Make us
ill by
Viruses
Can’t be
treated by
because
Fungi
Make us
ill due to
Bacteria
Can be
treated by
Semmelweiss
discovered
Can stop
working due to
eg
Animals may be adapted to
survive in dry and arctic
environments by
Organisms have ____________ to
help them ____________ in a habitat
1.
B54
Extremophiles may be tolerant to high
levels of 1)___________ , 2)
_____________ or 3) ___________
2.
3.
4.
Environmental change may affect the
distribution of organisms.
Change can be
caused by
Change can be
measured by
Animals compete for
Plants compete for
Living factors
e.g.
Non-living
indicators
e.g.
Living
indicators
Non-living
factors e.g.
Plants may be adapted to
survive in dry environments by
1.
2.
3.
e.g.
e.g.
B55
The information that results in plants and animals
having similar characteristics to their parents is
carried by _________ which are passed on in the
______ cells (_________) from which the
offspring develop.
Contains _______ made of
_____ and carried on long
_____________
Variation is due to
Advantages
Sexual
Asexual
Leads to variation?
Plants
Produces
Genetic
engineering
Used to
1.
2.
Fusion of gametes?
Involves
Disadvantages
Concerns
because
4 techniques
Animals
Embryo transplants
where…
B56
The amounts of __________ and __________
contained in living things always get less at each
stage of a _________________ from
__________ onwards. Biomass is lost as
_____________ products and used to produce
___________ in ____________ . This is used for
___________ and to control
____________________ . Only a small amount is
used for _______________ .
(Waste, growth, energy, body temperature,
biomass, plants, respiration, energy, movement,
food chain)
4
When plants or algae are eaten by animals
the carbon becomes part of the _________
and _________ in the animals body
4
1 1
1.
4
carbon compounds
in plants
2.
2
carbon
compounds in
animals
3
3.
5.
Pyramid of
________
carbon dioxide
in the air
________
Cycle
processes:
4.
Pyramid of ________
3
5
fossil fuels
carbon
compounds in
decomposers
Carbon compounds
in plants include
1.
2.
3.
Microbes digest materials
faster when the conditions
are…
Particular genes or accidental changes in genes of plants or
animals may give them characteristics which enable them to
survive better. Over time this may result in entirely new
species. There are different theories of evolution.
__________’s theory is the most widely accepted
Darwin
B57
Lamarck
Only slowly
accepted
because
1.
2.
3.
Stages in
explaining
natural
selection
Where new forms of a gene result from ______________ there may be relatively
rapid change in a species if the environment changes.