1.Why are fruit flies good subjects with which to observe the process of evolution through natural selection? a. Fruit flies are good subjects because they have very long generations, and scientists can control their development over long periods of time.
b. .Fruit flies are K-strategists, and these are easier to study over short periods of time.
c. Fruit flies are good subjects because they have short generations and scientists can control their development in the lab.
d. Fruit flies change into different species of flies each generation, so they have more features to study.
2.What are two factors for natural selection?
A. traits are beneficial to survival; traits can be passed to future generations through reproduction
B. traits are beneficial to survival; traits can only be passed on to every other future generation
C. traits are beneficial to survival; traits cannot be passed on from generation to generation
D. traits mimic the predators of the species; traits can be passed to animals outside of the species
3. What is the difference between K-strategists and r-strategists?
A. R-strategists produce few offspring, and K-strategists produce many offspring.
B. K-strategists are short-lived organisms that produce no offspring, and r-strategists are long-lived organisms that produce few offspring.
C. R-strategists are short-lived organisms that produce no offspring. K-strategists are also short-lived organisms, but they produce many offspring.
D. K-strategists are long-lived organisms that produce few offspring, and r-strategists are short-lived organisms that produce many offspring.
(I willl add 50 more points if right)

evidence of natural selection