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Slide 1

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Keywords: Adaptation, Competition, Inherit, Asexual Reproduction, Cloning, Genetic Engineering
white appearance for slit-like nostrils and two A cell nucleus
camouflage rows of eyelashes contains 46
thick layers of fat and fur for thin fur to allow easy heat Chromosomes, which
insulation loss carry genes and are
a small surface area to volume a large surface area to made of DNA.
ratio, to minimise heat loss volume ratio to maximise Different versions of
a greasy waterproof coat heat loss genes are called
large furry feet to distribute go for a long time without alleles.
weight water
large, flat feet to spread
weight
Transpiration is the loss of water stems that can store water
from the leaves widespread root systems that can
collect water from a large area
cacti have spines instead of leaves
Reduce water loss by
-Closing stomata
-Small surface area leaves Competition
-Water storage Tissues Animals Plants
-Succulent -food -light
-water -water
Cloning -territory -space
Plants: Cuttings, Tissue Culture. -mates -nutrients
Animals: Embryo Cloning, Adult Cell
Sexual Asexual
2 Parents 1 Parent
Lots of No Variation
Variation
Adult Cell Clones have the
Cloning same genes
Extinction, Evolution, Lamarck, Darwin, Natural Selection, Mutation, Pollution, Acid Rain, Global Warming, Sustainable Development…read more

Slide 2

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Theories of Evolution HSW Word Definition
Hypothesis A possible explanation of a problem that can be
Lamarck- inheritance of acquired characteristics tested experimentally.
Darwin- natural selection & survival of the fittest Evidence The data or observations that are used to
support a given hypothesis or belief.
Life started 3 - 4.5 billion Extinction
years ago. Theory An idea that might explain the results which is
·Changes in environment based on scientific results.
Fossils show how organisms
have changed ·New predators Hearsay A rumour or idea with no evidence to back it up.
·New competitors
·Disease Control A experiment to show what would have
happened if you had not changed the
Gas Problem Population Explosion independent variable.
Carbon Dioxide Global Warming Precision Small divisions on the measuring device gives
+ Methane
More people = high precision.
(rice + cows) ·More waste Accuracy An accurate measurement is one which is close
Sulphur Dioxide Acid Rain ·More air pollution to the true value.
+Nitrogen Oxides
·More water pollution Reliability The results of an investigation may be
CFCs Hole in Ozone considered reliable if they can be repeated.
·Less land available
Ethical Whether something is considered morally right
Sustainable or wrong.
Development Validity Valid data answers the question asked by the
investigation. Data are only valid if the
·Using resources experiment is a fair test.
wisely
·Recycle, reuse
·Plan on local and
global scale
·Brown field sites
·SSSIs…read more

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