BIOL 3000 Final Exam (Seibenhener)
Questions With 100% Correct Answers
2026-2027 Updated.
Human Observations - Answer How we use animals and plants to improve our daily lives.
Science and Society - Answer How science can shape social and political ideas.
Spontaneous Generation - Answer Hypothesis stating that life could arise from nonliving
matter.
Swan Neck Experiment - Answer Pasteur
step 1: flask with swan neck- air could come in, dirt could not, nothing grew in broth
step 2: flask without neck, introduced dust, things grew
This disproved spontaneous generation
Preformationism - Answer Organisms develop from miniature versions of themselves
William Harvey "On the Generation of Animals" - Answer All animals come from eggs
Antonie van Leeuwenhoek observed... - Answer sperm for the first time ‐ "all manner of great
and small vessels, so various and so numerous that I do not doubt that they be nerves, arteries
and veins.."
Nicolaas Hartsoeker produced the image of the... - Answer Homunculus
Homunculus - Answer A tiny human form curled up inside the sperm
Pangenesis - Answer The theory holds that body cells and structures shed small pieces of
themselves which collect in the reproductive organs prior to fertilization.
Gemmules - Answer As proposed by Darwin, the units of inheritance, supposedly accumulated
in the gametes so they could be passed on to offspring.
, Theory of Evolution by Natural Selection - Answer How inherited biological traits become
more or less common in a population over time as a function of how successful the trait is in
interacting with the environment.
Pangenesis follows the idea of - Answer "Blended Inheritance"
Inherited traits are determined... - Answer randomly from a range defined by the two parents.
Pangenesis follows the idea of... - Answer "Acquired Characteristics"
Lamarckism - Answer an organism can pass characteristics it has acquired throughout its
lifetime along to its offspring.
Darwin vs. Lamarck - Answer Darwin: Organisms, even of the same species, are all different
and that those which happen to have variations that help them to survive in their environments
survive and have more offspring.
Lamarck: If an organism changes during life in order to adapt to its environment, those changes
are passed on to its offspring.
Disproval of Lamarckism - Answer inheritance of acquired characteristics.
Rat Tail Mutation Experiment - Answer Weismann:
Cut of tails of rats and mated them over multiple generations -> offspring ALWAYS had long tails
Epigenesis - Answer "nothing physical is passed to offspring, however information to form
different parts is passed"
environmental factors can determine genetic activity i.e. which genes are turned "on" or "off"
Genetics - Answer Branch of biology dealing with heredity and the expression of inherited
traits
Heredity - Answer The transmission of traits from one generation to the next
Why is learning about heritability important? - Answer Genetic disorders
Questions With 100% Correct Answers
2026-2027 Updated.
Human Observations - Answer How we use animals and plants to improve our daily lives.
Science and Society - Answer How science can shape social and political ideas.
Spontaneous Generation - Answer Hypothesis stating that life could arise from nonliving
matter.
Swan Neck Experiment - Answer Pasteur
step 1: flask with swan neck- air could come in, dirt could not, nothing grew in broth
step 2: flask without neck, introduced dust, things grew
This disproved spontaneous generation
Preformationism - Answer Organisms develop from miniature versions of themselves
William Harvey "On the Generation of Animals" - Answer All animals come from eggs
Antonie van Leeuwenhoek observed... - Answer sperm for the first time ‐ "all manner of great
and small vessels, so various and so numerous that I do not doubt that they be nerves, arteries
and veins.."
Nicolaas Hartsoeker produced the image of the... - Answer Homunculus
Homunculus - Answer A tiny human form curled up inside the sperm
Pangenesis - Answer The theory holds that body cells and structures shed small pieces of
themselves which collect in the reproductive organs prior to fertilization.
Gemmules - Answer As proposed by Darwin, the units of inheritance, supposedly accumulated
in the gametes so they could be passed on to offspring.
, Theory of Evolution by Natural Selection - Answer How inherited biological traits become
more or less common in a population over time as a function of how successful the trait is in
interacting with the environment.
Pangenesis follows the idea of - Answer "Blended Inheritance"
Inherited traits are determined... - Answer randomly from a range defined by the two parents.
Pangenesis follows the idea of... - Answer "Acquired Characteristics"
Lamarckism - Answer an organism can pass characteristics it has acquired throughout its
lifetime along to its offspring.
Darwin vs. Lamarck - Answer Darwin: Organisms, even of the same species, are all different
and that those which happen to have variations that help them to survive in their environments
survive and have more offspring.
Lamarck: If an organism changes during life in order to adapt to its environment, those changes
are passed on to its offspring.
Disproval of Lamarckism - Answer inheritance of acquired characteristics.
Rat Tail Mutation Experiment - Answer Weismann:
Cut of tails of rats and mated them over multiple generations -> offspring ALWAYS had long tails
Epigenesis - Answer "nothing physical is passed to offspring, however information to form
different parts is passed"
environmental factors can determine genetic activity i.e. which genes are turned "on" or "off"
Genetics - Answer Branch of biology dealing with heredity and the expression of inherited
traits
Heredity - Answer The transmission of traits from one generation to the next
Why is learning about heritability important? - Answer Genetic disorders
