Science Medium Flashcards
True or False: A disturbance regime is the frequency and characteristics of disturbances that tend to impact an area
True
True or False: A change in salinity levels that causes a group of crabs to move a half-mile south from where they originally lived is relevant to a population ecologist.
True
Why is the southern United States a hotspot for trees?
The southern United States has high levels of tree diversity.
When does nitrogen return to the environment after cycling through organisms?
When dead animals decay
Factor that is primarily responsible for limiting the geometric growth of a population
The population’s death rate
True or False: Plant invaders affect their new environments by performing excessive levels of secondary production.
False
True or False: Young trees have high productivity.
True
Why is antibiosis a form of amensalism?
The chemicals harm other plants but not the organism that secretes them.
Why might two populations who live in the same area never interact?
They could use different resources
Which form of competition is occurring if a mongoose drinks so much water that none of the local red pandas can drink enough?
Exploitation competition
The energy of a moving object is called
Kinetic energy
By 2050, scientists predict that the human population will
reach 9 billion people
How do individuals in populations tend to organize themselves?
In clumps across an environment
Why might the tropics have more biodiversity than Hawaii?
The tropics have existed for longer
Describes photosynthesis but not chemosynthesis
It uses sunlight
