BIO 370 - Exam 3 Question and
answers correctly solved 2025/2026
the study of fossils from the time the organism dies until it is discovered - correct answer ✔taphonomy
what happens to a fossil from the time it dies until it is buried - correct answer ✔biostratinomy
changes (chemical, physical, biological) to a fossil after burial - correct answer ✔diagenesis
how rapidly a character in a species or lineage evolved over time - correct answer ✔rate of evolution
a between species measure of accumulated change - correct answer ✔rate of molecular evolution
the amount of variation in a species/population at a particular point in time - correct answer ✔genetic
variation
the amount by which the average fitness of a population is lowered due to genotypes that are less fit
than the genotype with the highest fitness - correct answer ✔genetic load
the overall loss of individuals or reproductive capacity in a population while selection is acting - correct
answer ✔cost of natural selection
all of the deaths or loss of reproductive capacity from selection is in addition to background mortality -
correct answer ✔hard selection
selected deaths are substituted for background mortality - correct answer ✔soft selection
answers correctly solved 2025/2026
the study of fossils from the time the organism dies until it is discovered - correct answer ✔taphonomy
what happens to a fossil from the time it dies until it is buried - correct answer ✔biostratinomy
changes (chemical, physical, biological) to a fossil after burial - correct answer ✔diagenesis
how rapidly a character in a species or lineage evolved over time - correct answer ✔rate of evolution
a between species measure of accumulated change - correct answer ✔rate of molecular evolution
the amount of variation in a species/population at a particular point in time - correct answer ✔genetic
variation
the amount by which the average fitness of a population is lowered due to genotypes that are less fit
than the genotype with the highest fitness - correct answer ✔genetic load
the overall loss of individuals or reproductive capacity in a population while selection is acting - correct
answer ✔cost of natural selection
all of the deaths or loss of reproductive capacity from selection is in addition to background mortality -
correct answer ✔hard selection
selected deaths are substituted for background mortality - correct answer ✔soft selection
