ALL THE COMSAE FINAL EXAM STUDY GUIDE
2025/2026 ACCURATE QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS <LATEST VERSION>
DNA evidence for evolution .......Answer.........More closely
related species have more identical DNA sequences compared
to more distantly related species
disruptive selection .......Answer.........form of natural selection in
which a single curve splits into two; occurs when individuals at the
upper and lower ends of a distribution curve have higher fitness
than individuals near the middle
directional selection .......Answer.........Form of natural selection in
which the entire curve moves; occurs when individuals at one end
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of a distribution curve have higher fitness than individuals in the
middle or at the other end of the curve
Species .......Answer.........Members of a population that can
breed and produce fertile offspring
Speciation .......Answer.........Formation of a new species
Evolution .......Answer.........Change over time
Fitness .......Answer.........Ability of an organism to survive and
reproduce in its environment
Artificial Selection .......Answer.........Humans selecting the most
desirable traits to breed , ...
Natural Selection .......Answer.........Organisms that are most
suited to their environment survive and reproduce
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Vestigial Structure .......Answer.........Structure that is reduced in
size and has little or no function
Adaptation .......Answer.........Inherited trait that increases an
organism's ability to survive and reproduce
Homologous Structure .......Answer.........Structures that are similar
in different species of common ancestry
Extinct .......Answer.........A species has died out completely
Fossils .......Answer.........Preserved remains of once-living
organisms
Mutation .......Answer.........a random change in the genetic code.
It could lead to a different phenotype or trait
stabilizing selection .......Answer.........form of natural selection by
which the center of the curve remains in its current position;
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occurs when individuals near the center of a distribution curve
have higher fitness than individuals at either end
survival of the fittest .......Answer.........Process by which individuals
that are better suited to their environment survive and reproduce
most successfully; also called natural selection
competition .......Answer.........the struggle between organisms to
survive in a habitat with limited resources
Variation .......Answer.........differences in physical traits of an
individual from the group to which it belongs
Embryology .......Answer.........study of embryos and their
developmentstruggle for existence .......Answer.........competition
among members of a species for food, living space, and the
other necessities of life