BIO100 STUDY GUIDE EXAM 4
UPDATED FINAL PAPER 2026
COMPLETE QUESTIONS AND
VERIFIED ANSWERS GRADE A+
◉ What is radiometric dating?
Answer: The process of determining the age of a fossil from radioactive
isotopes
◉ Which statement is true regarding bacteria?
Answer: Some bacteria are pathogens and harmful to humans, whereas
lots of bacteria are helpful to humans
◉ When did life first appear on the planet?
Answer: 3.5 billion years ago
◉ Which of the following conditions are required for evolution to
occur?
Answer: Traits must be heritable, Individuals within a population must
vary in their ability to compete for resources, Resources in the
environment must be limited.
◉ In the Grand Canyon, fossils in rock layers at the bottom of the
canyon are __________ than those in layers closer to the top.
Answer: older
, ◉ A zombie apocalypse wipes out almost the entire human species
before the zombie threat is eliminated. Only a group of 100 people who
were at a family reunion on an uninhabited island survived. They
returned to the mainland completely unaware of what had happened to
everyone. Answer the following question(s) regarding the few survivors
who now begin to rebuild the human population.Which of the following
processes is most likely to occur on this small population of humans?
Answer: Genetic drift
◉ What is the endomembrane system?
Answer: A group of internal membranes and organelles that are highly
connected within a eukaryotic cell
◉ What is the leading scientific hypothesis explaining how the
endomembrane system of eukaryotic cells originated?
Answer: From the inward folding of the plasma membrane
◉ A zombie apocalypse wipes out almost the entire human species
before the zombie threat is eliminated. Only a group of 100 people who
were at a family reunion on an uninhabited island survived. They
returned to the mainland completely unaware of what had happened to
everyone. Answer the following question(s) regarding the few survivors
who now begin to rebuild the human population.Despite an abundance
of habitat, why will it be difficult for the human species to recover?
Answer: The reduced genetic diversity will make it difficult for the
population to adapt to new diseases or other environmental changes.
UPDATED FINAL PAPER 2026
COMPLETE QUESTIONS AND
VERIFIED ANSWERS GRADE A+
◉ What is radiometric dating?
Answer: The process of determining the age of a fossil from radioactive
isotopes
◉ Which statement is true regarding bacteria?
Answer: Some bacteria are pathogens and harmful to humans, whereas
lots of bacteria are helpful to humans
◉ When did life first appear on the planet?
Answer: 3.5 billion years ago
◉ Which of the following conditions are required for evolution to
occur?
Answer: Traits must be heritable, Individuals within a population must
vary in their ability to compete for resources, Resources in the
environment must be limited.
◉ In the Grand Canyon, fossils in rock layers at the bottom of the
canyon are __________ than those in layers closer to the top.
Answer: older
, ◉ A zombie apocalypse wipes out almost the entire human species
before the zombie threat is eliminated. Only a group of 100 people who
were at a family reunion on an uninhabited island survived. They
returned to the mainland completely unaware of what had happened to
everyone. Answer the following question(s) regarding the few survivors
who now begin to rebuild the human population.Which of the following
processes is most likely to occur on this small population of humans?
Answer: Genetic drift
◉ What is the endomembrane system?
Answer: A group of internal membranes and organelles that are highly
connected within a eukaryotic cell
◉ What is the leading scientific hypothesis explaining how the
endomembrane system of eukaryotic cells originated?
Answer: From the inward folding of the plasma membrane
◉ A zombie apocalypse wipes out almost the entire human species
before the zombie threat is eliminated. Only a group of 100 people who
were at a family reunion on an uninhabited island survived. They
returned to the mainland completely unaware of what had happened to
everyone. Answer the following question(s) regarding the few survivors
who now begin to rebuild the human population.Despite an abundance
of habitat, why will it be difficult for the human species to recover?
Answer: The reduced genetic diversity will make it difficult for the
population to adapt to new diseases or other environmental changes.
