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Title: GCSE OCR Biology Module 2
Description: GCSE Biology Module 2 These notes have been thoroughly checked by a teacher and were described as 'stunning', and 'very highly detailed'. This is specifically for the OCR exam specification but will broadly cover most GCSE science courses.
Description: GCSE Biology Module 2 These notes have been thoroughly checked by a teacher and were described as 'stunning', and 'very highly detailed'. This is specifically for the OCR exam specification but will broadly cover most GCSE science courses.
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Define anatomical
...
Define carbon foot-print
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Define ecological niche
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Define extinction
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Define interdependence
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Define mutualism
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Define parasitism
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Define species
...
Diagram: Draw the carbon cycle
(explanation on the back of card)
...
Diagram: Draw the nitrogen cycle
(explanation on the back of card)
...
How are animals and plants that are adapted
to an environment better able to compete for
limited resources?
Because they are specialists in that area
which means they may be better at storing
water e
...
cacti, camels
...
g
...
How can evolutionary relationships
between organisms be displayed?
You can use evolutionary trees
...
How can pollution be measured?
By direct measurement of pollution levels and
measuring the presence of indicator species
...
How can you model and analyse evolutionary
relationships between organisms?
Using ICT software/ computers
...
g
...
How do adaptions to dry environments
help organisms to survive?
Cacti have thick waxy cuticles to prevent water loss
and their roots are radial means they can collect a
large amount of water when it rains
...
How do indicator species tell us the
level of pollution?
If certain species are present and they can
survive than the area is polluted e
...
blood
worm, maggot
...
By a counter current heat exchange
system
...
How is the binomial system important as
being the basis of naming species?
It means every scientist/ person in the world understands
a common name for an organism, without the need for
translation
...
What are other methods have aided or
understanding of organism classification?
DNA sequencing in different species
...
What are the issues concerning
whaling?
Getting international agreement, policing
and enforcing agreements and hunting for
research
...
What are the problems when trying
to classify species?
Hybrids, organisms that only produce
asexually, the fact that evolution is a
continuing process
...
What can be used for the start points
of other food chains?
Excretory products, faeces and uneaten parts of animals
...
What commercial value to dead
whales have?
Food, oil, cosmetics
...
What do closely related species have
in common?
They share a relatively recent ancestor, they may have
different features if they live in different types of habitats
...
What does interspecific mean?
It means organisms competing with
others in different habitats
...
What else can effect the outcome shape of
a pyramid of bio-mass?
Efficiency of the energy transfer
...
What organisms will try and occupy
similar ecological niches?
Organisms that are similar
...
When would a species be at a high
risk of extinction?
If there is not enough genetic
variation in the population
...
Why are pyramids of numbers and pyramids
of biomass for the same food chains are
different shapes?
The biomass is the dry mass of the organism, and so this
could be more than the sheer number of organisms? for
example 100 caterpillars is more than one tree but the tree
overall has a larger dry mass
...
Why are the predator and prey cycles
out of phase with each other?
A peak in one population is followed later
by a peak in the other population
...
Why does speciation require geographical or
reproductive isolation of populations?
The species being bred need to be
kept constant to avoid hybrids
...
Why has the theory of natural
selection changed?
Because people discover more things and
develop new ideas e
...
inheritance
...
Why is intraspecific competition
more significant?
Because intraspecific is of the same species,
so they will have to live, fighting another of
their "pack"
...
Why is it hard to put organisms in
distinct groups?
Organisms and how they live varies
massively all the time
...
Why was Lamarck's theory
discredited?
Why was the theory of evolution was
originally met with a hostile response?
Why would a conservation program
need to be put in place?
Because he did not have a genetic basis to back his ideas
and his theory couldn't explain the presence of simple
organisms
...
To boost genetic variation of species, viability of
populations, available habitats and to encourage
interactions between
species
Title: GCSE OCR Biology Module 2
Description: GCSE Biology Module 2 These notes have been thoroughly checked by a teacher and were described as 'stunning', and 'very highly detailed'. This is specifically for the OCR exam specification but will broadly cover most GCSE science courses.
Description: GCSE Biology Module 2 These notes have been thoroughly checked by a teacher and were described as 'stunning', and 'very highly detailed'. This is specifically for the OCR exam specification but will broadly cover most GCSE science courses.