Transcript inheritance-whatisaspecieslesson1

Standard Grade Biology
Inheritance Topic
What is a Species?
Inheritance

By the end of this lesson you should
be able to:
Describe what a species is.
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What is a species?


Animals and plants reproduce to
ensure the survival
of their
species.
If the organisms of a species did not
reproduce
then the species
would become extinct
extinct
reproduce
survival
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What is a species?
There are many different varieties of dogs.
How many can you think of?
Since they can all breed
together they are all
classed as the same species!
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What is a species?
Organisms belong to the same species
if they can reproduce to produce
offspring.
fertile

fertile
reproduce
species
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What is a species?
There are many different races of humans.
How many can you think of?
Since they can all breed
together they are all
classed as the same species!
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Horses & Donkeys- same species?
Are a horse and
donkey the same species?

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Horses & Donkeys- same species?
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Can they interbeed?
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What animal is produced?
YES
A MULE
Is a mule fertile
(i.e. can it produce offspring)?
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NO
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Horses & Donkeys- same species?
Horses and donkeys are
not the same species
because…….
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Other examples- same species?
Oak & Poplar trees
are/are not the same
species because…….
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Oak
Poplar
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Other examples- same species?
Blackbird & starling
are/are not the same
species because…….
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blackbird
starling
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Other examples- same species?
Dandelion &
buttercup are/are
not the same species
because…….
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buttercup
dandelion
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Inheritance

By the end of this lesson you should
be able to:
Describe what a species is.
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