Navigation » List of Schools » California State University, Northridge » Health Sciences » HSCI 390 – Bio Statistics » Spring 2020 » Our Effects Quiz
Below are the questions for the exam with the choices of answers:
Question #1
A global patterns of oceanic circulation
B the intensity of a solar radiation
C the dominant herbivorous organisms of a region
D global patterns of atmospheric circulation
Question #2
A The population may shoot past its carrying capacity too quickly and then crash
B The level of resources in the habitat will increase equally
C Both a) and d) are possible
D The carrying capacity will increase
E The population will slowly decline until it reaches its carrying capacity and fluctuate at about that number
Question #3
A 100
B 10,000
C 2,000
D 100
E 10
Question #4
A nitrogen is a component of amino acids, proteins, and nucleic acids.
B The nitrogen cycle is NOT important biologically: the atmosphere is composed of 78% nitrogen, so nitrogen is freely available to all living organisms regardless of where it is in its cycle
C nitrogen is a major constituent of phospholipids, ATP, and other energy-storing molecules
D nitrogen forms the framewok for organic molecules essential to all organisms
E photosynthesis by plants and phytoplankton removes substantial amounts of atmospheric nitrogen
Question #5
A enzymes
B sugars
C work
D substrates
Question #6
A in a forest that had burned to bare ground
B on bare ground exposed by the retreat of a glacier
C on an island that has just risen out of the ocean
D on the surface of recently cooled lava
Question #7
A All cells must have chloroplasts in order to survive
B All other organisms require carbon dioxide for life processes
C The sugars made during photosynthesis are building blocks of DNA
D Photosynthesis captures energy that other organisms access when they eat either plants or organisms that eat plants
Question #8
A oscillating cycle
B J-shaped population curve
C S-shaped population curve
D C-shaped population curve
Question #9
A deserts
B temperate forests
C estuaries
D tropical forests
Question #10
A Sea star prey, such as mussels, might increase in abundance and crowd out other community members
B Other predators will simply replace P.ochraceus and take advantage of prey that P.ochraceus consumed
C The communities would be statistically indistinguishable from one another.
D Prey species, such as mussels, would decline, but most species within the community would be unaffected.
Question #11
A it has occurred relatively rapidly
B there is no known mechanism for its occurrence
C CO2 reacts so quickly with other compounds that it should not be occurring
D it has occurred relatively slowly
Question #12
A oxidized to make sugars
B provided by carbon dioxide
C provided by enzymes
D extracted from DNA
Question #13
A cause the abundance of their prey to rise
B drive their prey to extinction
C quickly alter the behavior of their prey
D restrict the distribution of their prey
Question #14
A Seeds are eaten by a tufted titmouse, the titmouse is eaten by a hawk, the hawk eggs are eaten by snakes, and the snakes are eaten by owls.
B Seeds are eaten by sparrow, the sparrow is eaten by a hawk, and the hawk’s eggs are eaten by a snake.
C Seeds and grasses are eaten by various insects and small herbivores, the insects are eaten by a meadowlark, the small herbivores are eaten by a hawk, the meadowlark and the hawk eggs are eaten by snakes, and the snakes are eaten by owls.
D Goats eat grass; the goats are milked and eaten by humans
Question #15
A density-dependent
B density-independent
C exponential growth
D logiistic growth