What do scientists often use to study microevolution? a. the fossil record b. the rate of mutation c. allele frequencies d. laboratory studies

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it

flooding wildfire landslides climate change the factors listed have an immediate effect on the animal populations found in any habitat. the four factors would lead to a death. b emigration. eliminate c immigration. d mutations.