True or False:
a fat-soluable toxin safer for humans b/c it can be excreted in urine, but has a high impact on aquatic life?
false
bioaccumulation is the buildup of _____ soluble toxins over the course of an organism's lifetime
fat
what does peer review mean?
Evaluation of work was performed anonymously by others working in the same feild
Who keeps official data on the world population?
United Nations
ozone in the stratosphere is quite important for which of the following:
a. limiting UV-B exposure to plants, because excess severely disrupts photosynthetic output
b. preventing radiation particles from accumulating in human lung tissue
c. limiting expos
E
current human population is about ____ billion
7 billion
What does peak child refer to?
the number of children are no longer increasing
T/F
The most developed places in the world will experience the greatest local change in population in the future?
False
T/F
Pronatalist pressure were evidenced during China's one-child policy and India's festivals with vasectomies-for-money?
False
Phosphorous cycles through the abiotic atmosphere, hydrosphere and lithosphere
False
which cycle is the slowest: carbon, nitrogen, or phosphorous
phosphorous
plant growth is directly related to the amount of nitrogen and/or phosphorous available. This is because they are considered limiting nutrients. When phosphorous increases, plant growth ______. When nitrogen increases, plant growth _____.
Increases, increases
T/F
Although carbon, nitrogen and phosphorous are important for the environment, they do not directly make up any component of a human.
False
carbon moves from the atmosphere to plant life via ______
PHOTOSYNTHESIS
farmers add rotations of legumes to increase which nutrient to the soil?
nitrogen
eutrophication is the result of a limiting nutrient making its way into which abiotic realm?
hydrosphere
Reasearch where 58 different lizards species from cuba were collected to show that evolutionary divergence overcomes niche conservatism. What kind of ecological study would you best identify this as?
community ecology
species evole in their ______
realized niche
when environmental conditions change a lot, it would be better to be a _______ when it comes to feeding habits
generalist
Dandelions have windblown seeds with no factor keeping them together or apart. What kind of distribution is this?
random
Humans have high parental care and fewer office spring compared to many other organisms. This makes them K-selected, which means what will happen to the population over time?
human population will eventually show a logistic modeled, or S shaped curve
Emigration, Immigration, births and deaths all directly affect the populations ______
population size
A decrease in beneficial ozone has detrimental effect on plant photosynthesis. From a community ecology perspecitve, which other species would also be effected?
herbivores, omnivores, and carnivores
placing a road through a national park might help tourists gain access to different locations on the site, but will likely cause harmful effects to which type of species?
core species
What is resource partitioning?
Where one species uses a certain area of space for food (ex. top of tree) and another species uses another area of the same space (bottom of tree)
Would you likely be exposed to more toxins eating a piece of large predatory fish like tuna or a small fish? WHy
large fish because bioaccumulation happens in the fish that the tuna would be eating, creating biomagnification
How can you reduce carbon output? Nitrogen? Phospherous?
take the bus, walk or bike to school instead of driving
Use less fertilizers
Use less fertilizers