Exam 4 Flashcards
(21 cards)
A plant has high leaf N, what other does this plant likely have?
Where does the plant most likely live?
Low LMA
Low Elevation
Which of the following traits would cause a plant to have high photosynthetic capacity?
a. thick leaves
b.high leaf N
c.long leaf lifespan
d.all of the above
b.high leaf N
Which of the following species would allocate the most resources to below ground biomass?
a. A plant with low LMA
b. A plant with rapid growth of above ground biomass
c. A plant with long leaf lifespan
d. A plant with thin leaves
c. A plant with long leaf lifespan
Which of the following is an example of a secondary metabolite?
a. Nucleic acids-molecules that make up DNA and RNA
b. Phospholipids-molecules that make up cell membrane
c. Capsaicin-the compound that makes peppers hot
d. ATP-the universal cellular energy currency
c. Capsaicin-the compound that makes peppers hot
Which of the following describes an ecological community?
a. A group of organisms of the same species living in the same area
b. A group of organisms that can potentially interbred
c. A group of interacting species that share a habitat
d. A group of organisms and their physical environment interacting with each other
c. A group of interacting species that share a habitat
Which of the following impacts what species are present in a community?
a. The temperature and precipitation levels in the habitat
b. Whether a keystone species is present
c. The functional traits of the species
d. all of the above
d. all of the above
Which of the following is an example of an interaction that feeds back on environmental filters?
a. Golden eagles are competitivity excluded by bals eagles
b. Otters eat urchins which are an herbivore of kelp, kelp provides a habitat for fish
c. Two species of anoles evolve niche differentiation
d. An invasive species hybridizes with a native species leading to genetic swamping
b. Otters eat urchins which are an herbivore of kelp, kelp provides a habitat for fish
Pigs do a rooting behavior (digging with their snouts to find food) which species will be favored a habitat with pigs
An annual self-compatiable plant that produces lots of small seeds
Which species would you expect to first become established after a volcano erupts?
a. Annual plant
b. Lichen
c. Perennial plant
d. Shrub
b. Lichen
Why might invasive species be more successful than native species?
They lack predators in the system
which of the following is an example of a species with high phenotypic plasticity?
a. A species that has low diversity in functional traits
b. A species with high genetic variance leading to high diversity in traits
c. A species that has varibale traits in response to the environment
d. A species with local adaptation
c. A species that has variable traits in response to the environment
What could you do to prevent the establishment phase of invasion?
Screen for invasive species at ports of entry
Which is most likely to occuring during the lag phase of invasion?
a. Fragmentation of habitat
b. Adaptation
c. Biocontrol
d. increased distrubance
b. Adaptation
How do feral pigs impact island ecosystems?
They feedback on the environment making it less suitable for foxes
What would be the disadvantage of mating island foxes with foxes from other islands?
Outbreeding depression
consider the following species: Ceanothus folious, an evergreen shrub with silver foliage and blue flowers that is generally under 2m tall. This plant is self- incompatible and is adapted to low levels of soil calcium and high magnesium, such than is present in serpentine soils. Which of the following best describes the species?
a. competitor
b. stress tolerator
c.resources acquisitive
d.ruderal
b. stress tolerator
Which of the follwoing species make a great agriculture weed?
a. competitor
b. stress tolerator
c. Ruderal
c. Ruderal
What benefit might a cover crop provide to an agriculture system?
a. Increase nutrient availability
d. decrease erosion
c. increase soil carbon
d. all of the above
d. all of the above
Why are agricultural species particularly vulnerable to disease?
They have low genetic diversity
How might you increase the number of pollinators in an agricultural system?
Promote the presence of native plant species
How are GMOs different from other crop species?
They have been altered to have a desirable trait through genetic engineering
