Unit 6
True or False: Even though the ocean is very large, organisms still need to compete for resources
True
What determines when natural selection takes place?
If an organism is well suited for its environment it will continue to live successfully. If it is not well suited to its environment it will not live successfully.
Why is burning oil that spills into the ocean, not the best solution environmentally
It releases more pollution into the air
Why is limiting the amount of fishing that can occur, not a good solution to stop overfishing
Individuals rely on the fish they catch for food. Limiting the amount of fishing that can be done would harm those individuals.
What is an organisms niche
What is parasitism and why is it considered a symbiotic relationship?
Parasitism is where an organisms harms the host which is keeping it alive. Even though this harms the host it is considered a symbiotic relationship because there is a long term interaction between the species
Define a persistent pollutant
Why is it important to have an independent scientist research the effects of a corporation on an ecosystem?
You want someone who will not be biased towards the company. You want someone who will be neutral and report he facts of their research
Define interference
Competition between members of the same species in an ecosystem
Some organisms in a population, are not as well suited for their environment as others. Why do these organisms not threaten the survival of the population as a whole
Natural selection will generally not allow the organism to live long enough to reproduce and pass those negative traits on to its offspring
What is the purpose of the Clean Water Act
Why is refined oil much worse for the environment than unrefined oil?
How do we determine the biodiversity of an ecosystem?
We examine how many different species are living in that ecosystem
Why do marine scientists take many representative samples when they are trying to calculate the average population of marine creatures
So they are able to find the average number of organisms, which will give them the most accurate representation of the organisms population
What is an example of a natural pollutant
Volcanic ash and gasses
How are the ethics of marine scientists and medical doctors similar
They both take the "do no harm" approach to what ever they are working with
Define trophic cascade and what can cause it
Trophic cascade occurs after a natural disaster, or disease strongly impacts a species or population. Due to the harm being done to that individual population, all populations in the ecosystem will feel the effects.
The organisms have adapted slightly allowing them to have different diets
It is recommended that people avoid eating high quantities of fish that may have high level of bioaccumulated contaminants (ex: mercury, microplastics). What type of fish do you think people should avoid eating?
Primary consumers or Large predators
Large predators
How is marine science shaped by cultural context? What is an example of that in science today?
Scientists will study what the general population is the most concerned about. At this time global warming is a threat that is being heavily researched because people are interested in preventing it.