THEORY OF
EVOLUTION AND
EVIDENCE FOR
EVOLUTION
MATRIC IEB LIFE
SCIENCE
, Grade 10 evolution recap:
How old is earth: . 6
4 billion years old
How was earth built up: layers of rock layed down
by water or volcanic activity -> each lay or is a diff-age
↳ oldest lay or at the bottom
How do you date fossils: relative dating
,
radiometric dating
Why did people study fossils:
-
to learn about ancient forms
↳ dinosaures
that species change
Theory of evolution
-
gain evidence to support the idea
What is evolution: Macro-evolution: Clarge scale
evolution is the gradual change or development development of new life
of something pre-existing ones
forms from
over many generations
Biological evolution:
process of change during the course of time
due to alteration of genotypes and the Speciation:
transfer of altered genes to the next .
gen
development of one species into another
Micro-evolution: (small scale)
adaption ofexisting species by changes of
inherited characteristics from one yen. to the
next
EVOLUTION AND
EVIDENCE FOR
EVOLUTION
MATRIC IEB LIFE
SCIENCE
, Grade 10 evolution recap:
How old is earth: . 6
4 billion years old
How was earth built up: layers of rock layed down
by water or volcanic activity -> each lay or is a diff-age
↳ oldest lay or at the bottom
How do you date fossils: relative dating
,
radiometric dating
Why did people study fossils:
-
to learn about ancient forms
↳ dinosaures
that species change
Theory of evolution
-
gain evidence to support the idea
What is evolution: Macro-evolution: Clarge scale
evolution is the gradual change or development development of new life
of something pre-existing ones
forms from
over many generations
Biological evolution:
process of change during the course of time
due to alteration of genotypes and the Speciation:
transfer of altered genes to the next .
gen
development of one species into another
Micro-evolution: (small scale)
adaption ofexisting species by changes of
inherited characteristics from one yen. to the
next
