4.2 -

Question 1

Fossils provide evidence for evolution in organisms describe other types of evidence that support the theory of evolution in organisms.

Answer 1

Similarities/ Differences in genes,
Similarities/ Differences in nucleotide sequences,
Similarities/ Differences in Cytochrome C,
More similar Cytochrome C the more closely related two species are.
Similarities/ Differences in sequence of amino acids in proteins,
More similar sequence of amino acids in proteins the more closely related two species are.

Question 2

Features of an Organisms from Plantae that won’t be in in Animalia. (4)

Answer 2

Cellulose Cell Wall
Chloroplasts
Permanent Vacoule

Question 3

Why is natural selection more widely accepted by scientists now than the 19th century? (1)

Answer 3

More evidence since nineteenth century to back up natural selection.

Question 4

State the role of a gene? (1)

Answer 4

Code for one or more polypeptide.

Question 5

Explain how the structure of DNA allows for replication?

Answer 5

Double Stranded
Both strands act as a template
Hydrogen bonds can easily break between the bonds

Question 6

Explain how the structure of DNA allows for replication?

Answer 6

Double Stranded
Both strands act as a template
Hydrogen bonds can easily break between the bonds

Question 7

State the name given to the evolution of new species?

Answer 7

Speciation

Question 8

Explain why the Galápagos Islands have a high number of species?

Answer 8

• Have different selection pressures

- The islands are separated from mainland