Module 4 Exam | Marine Science
Questions and Answers
How does the environment influence adaptions? - Answer -To survive and reproduce,
all living organisms must adjust to conditions imposed on them by their environment.
Adaptions - Answer -A trait that provides a function and is the result of natural selection.
Endemic - Answer -Unique to a geographic location
Gene pool - Answer -The set of all genes, or genetic information, in any population,
usually of a particular species.
Analogous structures - Answer -A structure that has a similar form or function in two
different species and was not present in the last common ancestor of those species.
What type of traits does natural selection favor? - Answer -Because resources are
limited in nature, organisms with heritable traits that favor survival and reproduction will
tend to leave more offspring than their peers, causing the traits to increase in frequency
over generations.
Divergent evolution - Answer -Occurs when one trait changes over time into different
variations.
Convergent evolution - Answer -Occurs when multiple species develop similar traits.
Parallel evolution - Answer -Occurs when a species with a common ancestral history
evolve similar traits over time, but the traits are not due to common ancestors.
What kind of event can impact an entire marine ecosystem? - Answer -Harmful Algae
Bloom (HAB)
What type of factors affect the health of an ecosystem? - Answer -Water quality,
chemical and oil spills, mercury and cadmium, other types of pollution, food quality,
food's availability, and HABs
How does the environment affect genetic factors and gene expression? - Answer -
Things from the environment like pollution or radiation cause mutations.
Questions and Answers
How does the environment influence adaptions? - Answer -To survive and reproduce,
all living organisms must adjust to conditions imposed on them by their environment.
Adaptions - Answer -A trait that provides a function and is the result of natural selection.
Endemic - Answer -Unique to a geographic location
Gene pool - Answer -The set of all genes, or genetic information, in any population,
usually of a particular species.
Analogous structures - Answer -A structure that has a similar form or function in two
different species and was not present in the last common ancestor of those species.
What type of traits does natural selection favor? - Answer -Because resources are
limited in nature, organisms with heritable traits that favor survival and reproduction will
tend to leave more offspring than their peers, causing the traits to increase in frequency
over generations.
Divergent evolution - Answer -Occurs when one trait changes over time into different
variations.
Convergent evolution - Answer -Occurs when multiple species develop similar traits.
Parallel evolution - Answer -Occurs when a species with a common ancestral history
evolve similar traits over time, but the traits are not due to common ancestors.
What kind of event can impact an entire marine ecosystem? - Answer -Harmful Algae
Bloom (HAB)
What type of factors affect the health of an ecosystem? - Answer -Water quality,
chemical and oil spills, mercury and cadmium, other types of pollution, food quality,
food's availability, and HABs
How does the environment affect genetic factors and gene expression? - Answer -
Things from the environment like pollution or radiation cause mutations.
