Summary
OCR A-Level Biology Evolution Summary
A HandWritten summary which contains all the necessary A* Content for Evolution at OCR A-Level Biology.
[Show more]
Seller
Follow
Content preview
Theory of evolution Well adapted animals reproduce better·
Charles Darwin
:
-
Evidence for evolution
·
:
Paleontology Study of fossils
·
:
Comparative anatomy study of similarities and differences in anatomy
·
:
Comparative biochemistry Similarities and differences in the chemical makeup
:
of organisms
Homologous structures :
Structures that appear different in different
organisms but have the
same structure
underlying
Evolutionary embryology Embryos of different animous look and develop similarly
:
Types of Variation :
·
interspecific
:
between species
intraspecific Within a species
· :
Genetic Causes of Variation :
Alleles mutations , meiosis ,
,
reproduction chance ,
Adaptations :
Characteristics that increase an
organisms chance of survival and reproduction
in environment
a
given
Anatomical :
physical (internal and externall features .
↳ Body covering ,
teeth
camouflage mimicry sunhen stomata leaf hairs
,
, , ,
Behavioural How an both learned and inverted
·
organism acts
-
:
↳ Survival
behaviours hibernation courtship
, ,
,
migration
Innate Inherited
·
through genes building webs
:
ie
Learned
Through experience of tools
·
i e the use
.
or observation
:
.
Physiological Processes inside
·
that take
place organism
:
an
↳ Poison
production ,
antibiotic production , water
holding
Analogous Structures perform the same function from different genetic origins
:
convergent evolution Unrelated species begin to share similar fraits
:
↳ Response to selection pressures
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller faithcortis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £2.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
52510 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now