Question

Consider the definitions of adaptation and fitness:

Adaptation: a change or the process of change by which an organism or species becomes better suited to its environment.

Fitness: an organism's ability to survive and reproduce in a particular environment

Examine the following population and the characteristics exhibited by the members of this population.

Characteristics of female squirrels Color of fur & adaptations
Grey Brown Black
% of female population 60 25 15
# offspring surviving to adulthood 12 6 4
average life expectancy 4 years 2 years 1 year
primary habitat whole forest forest edge dense forest
primary predators owls owls foxes
1. According to the data in this table, which color variation of this population is best adapted to its habitat? Explain your thinking.

2. What adaptation of the grey squirrel do you think is most influential on its fitness?

3. If offspring always have the same color fur as their mother, which color will experience the most population growth over the next 4 generations. Explain your thinking.

4. Over time, the squirrel population changes and now looks like this:

Characteristics of female squirrels Color of fur & adaptations
Grey Brown Black
% of female population 20 75 5
# offspring surviving to adulthood 6 10 2
average life expectancy 2 years 3 years 6 months
primary habitat whole forest forest edge dense forest
primary predators owls owls foxes
How has this population evolved? What pressure may have acted on this population that would cause this change in frequency?

Answer 1

Answer:

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Explanation: