important!!

Question 1

siblings share ___%

Answer 1

50%

Question 2

parent and child share ____% of their genes

Answer 2

50%

Question 3

half siblings share ___% of their genes

Answer 3

25%

Question 4

grandparents and grandchildren share ___% of genes

Answer 4

25%

Question 5

cousins share ___% of their genes

Answer 5

12.5%

Question 6

explain the 4 facets of adaptations and what they mean

Answer 6

Efficiently – does it do the job well?
Economically – does it do the job without imposing too
high a cost on the organism?
Precisely – is it specialized to do this job?
Reliably – does it do the job in most contexts?

Question 7

give a biological example of an adaptation and apply the 4 facets to it.

Answer 7

Human bipedalism (walking on two feet)
Bipedalism is:
Efficient, allowing fewer calories
to be spent travelling long
distances
Economical, imposing costs that
do not generally affect survival
and reproduction
Precise, in that it helps for
walking, but not other activities
(e.g., climbing)
Reliable, in that it develops in
childhood across the world