Act 1 Flashcards
What is the title of the Lab Act 1?
Population, Natural Selection, and Adaptation
How does each individual within a population differ from each other?
Color
Size
Rate of growth
etc.
What colors were the macaroni noodles used in Lab Act 1
Natural
Red
Green
For the next ___ minutes, ____ students will collect the scattered noodles…
5 minutes; 4 students
What do we compute to test whether there is a significant change in the gene frequency in the gene pool of the future population
X^2 values (chi-square values)
How to compute for Final Prey Survived (FPS)
100-FPC
How to compute for Expected Prey Survived (EPS)
EPS = Total FPS/3
How to compute for Final Proportion (FPP)
FPP = FPS/Total FPS
How to compute for Chi-square
(FPS-EPS) ²
x² = SUM —————
EPS
df = 2
How to know if statistical test is significant
If x² > critical value = significant
If x² =< critical value = not significant
Which of the following organisms will evolve faster? Why?
a. Smaller or larger ones
b. Slow or fast-reproducing ones
c. Short or long- lived ones
According to the scientific journal of Bromham (2009), smaller species tend to have faster reproductive rates and shorter lifespans. When comparing two species that differ in size, smaller species typically evolve faster because they have shorter generation times, produce more offspring, and have higher metabolic rates. Additionally, smaller species often have larger population sizes, which can lead to a greater potential for genetic variation and more opportunities for natural selection to act on beneficial mutations. Despite their shorter lifespans, these factors contribute to faster evolutionary rates. Therefore, organisms that are smaller, reproduce quickly, and have short lifespans are generally expected to evolve faster than larger, slower-reproducing, and longer-lived organisms.
