Evidence for evolution

Question 1

Name 4 evidences for evolution

Answer 1

fossils. modification by descent, biogeography, genetics

Question 2

what is the fossil record

Answer 2

palaentological evidence
history of life shown by remains of living of once living organisms that escaped decay

Question 3

what do fossils show(2) and type

Answer 3

chronologically ordered and show increase in complexity as older fossils are more simple hence showing macroevolution
show increase in diversity as older fossils have least diverisity showing common anscestor
transitional fossils show mixed traits showing one group gives rise to next

Question 4

explain modification by descent

Answer 4

newer organisms descended from earlier ancestors as we share similar structure but newer traits showing common anscestor

Question 5

homologous vs analogous structures

Answer 5

homologous is same basic plan but different appearance or function like pentadactly limbs
analogous have different structures but same functions

Question 6

explain biogeography

Answer 6

distribution of plants and animals on earth
continental drift split pangea resulting in different isolated regions with different climates
different organisms in each region show they evolved to the envitonement

Question 7

explain genetics

Answer 7

uses the sequencing of genes to show the nature of inheritance of traits showing relation and common ancestor

Question 8

two things that genetics show?

Answer 8

common ancestor as we all have dna and rna and same sequences that code for same enzymes and proteins
varying relations as depending on how many dna nucleotide sequences shared
more recent relations mean more shared sequences