It does sweat reducing water loss.
It is active at night (nocturnal) so that it keeps cool.
Its kidney tubules are very long and promote water reabsorption very effectively.
It does not sweat reducing water loss. .
Its mouth and nasal passages are dry reducing water loss.
It is active during the day (nocturnal) so that it keeps cool.
It has a large intestine to help water reabsorption.
It has a small intestine to help water reabsorption.
Its kidney tubules are very short and promote water reabsorption very effectively.
Its mouth and nasal passages are wet reducing water loss.
Dark skin for insulation
Wide feet so it does not sink into the snow
Light skin for insulation
Thin skin for insulation
Narrow feet so they do not sink into the snow
Blubber for insulation
The chichlid have different
parts and so can occupy different
and increases their chance of
A mutation is a
Occur very rarely
Occur all of the time
agents speed up the rate of mutations.
are examples of these agents.
gas is an example of chemical and
are an example of
Mutations cause new
(forms of genes).
These alleles can confer a selective
. The organism that have this will
and pass on these
genes to their offspring.
between members of a species.
within a population makes it possible for a population to
within over time in response to changing
It is an organism that displays the genotypic
in its phenotype.
When the mutation is in a sex cell
When a mutation is in a body cell
It is when a sample of the
fluid is taken to detect
characteristics before birth – it can detect Down’s syndrome.
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