BIOD 151 MODULE 6 EXAM SCRIPT
COMPLETE ANSWERS GRADED A+
◉ What happens to individuals with beneficial adaptations?
Answer: They are more likely to survive and pass on their genes
(higher biological fitness)
◉ Which beetles are selected for in the scenario?
Answer: The beetles that blend in best with the environment
(camouflaged ones).
◉ What happens to beetles that are not selected for?
Answer: They are more likely to be eaten and not reproduce
◉ How does natural selection affect a population over time?
Answer: Helpful traits become more common in the population.
◉ What happens if all individuals in a population are exactly the
same?
Answer: Natural selection cannot occur because no traits are
better than others.
◉ How do traits get passed to the next generation?
, Answer: Through reproduction when organisms pass their genes
to offspring.
◉ What happens to helpful traits over time?
Answer: They become more common in the population.
◉ What happens to harmful traits over time?
Answer: They become less common because those individuals are
less likely to survive.
◉ What does "survival of the fittest" mean?
Answer: Organisms best suited to their environment survive and
reproduce more.
◉ What is competition in a population?
Answer: When organisms compete for limited resources like food,
space, or shelter.
◉ Why does competition matter for natural selection?
Answer: Not all individuals survive, so only some pass on their
traits.
◉ What is an adaptation?
Answer: A trait that increases an organism's chances of survival
and reproduction.
COMPLETE ANSWERS GRADED A+
◉ What happens to individuals with beneficial adaptations?
Answer: They are more likely to survive and pass on their genes
(higher biological fitness)
◉ Which beetles are selected for in the scenario?
Answer: The beetles that blend in best with the environment
(camouflaged ones).
◉ What happens to beetles that are not selected for?
Answer: They are more likely to be eaten and not reproduce
◉ How does natural selection affect a population over time?
Answer: Helpful traits become more common in the population.
◉ What happens if all individuals in a population are exactly the
same?
Answer: Natural selection cannot occur because no traits are
better than others.
◉ How do traits get passed to the next generation?
, Answer: Through reproduction when organisms pass their genes
to offspring.
◉ What happens to helpful traits over time?
Answer: They become more common in the population.
◉ What happens to harmful traits over time?
Answer: They become less common because those individuals are
less likely to survive.
◉ What does "survival of the fittest" mean?
Answer: Organisms best suited to their environment survive and
reproduce more.
◉ What is competition in a population?
Answer: When organisms compete for limited resources like food,
space, or shelter.
◉ Why does competition matter for natural selection?
Answer: Not all individuals survive, so only some pass on their
traits.
◉ What is an adaptation?
Answer: A trait that increases an organism's chances of survival
and reproduction.
