Bio 325 Exam 3 UKY Questions With Correct
Answers
. |In |plants, |"self-thinning" |refers |to |reduction |in |- |CORRECT |ANSWER✔✔-population |density |in
|response |to |competition, |as |population |biomass |increases.
In |most |Zoos, |zookeepers |house |gazelles |and |ostriches |in |the |same |exhibit. |One |possible |
reason |for |keeping |them |together |is |- |CORRECT |ANSWER✔✔-) |interspecific |competition |is |low
In |the |Lotka-Volterra |competition |equations, |the |parameter |a12relates |to |the |- |CORRECT |
ANSWER✔✔-effect |OF |species |2 |ON |population |growth |rate |OF |species |1.
Analysis |of |the |Lotka-Volterra |competition |model |implies |that |two |competitors |can |coexist |
only |when |- |CORRECT |ANSWER✔✔-intraspecific |competition |is |stronger |than |interspecific |
competition.
The |__________ |defines |the |physical |conditions |under |which |a |species |might |live, |in |the |
absence |of |interaction |with |other |species. |- |CORRECT |ANSWER✔✔-fundamental |niche
Competition |in |animals |can |take |the |form |of |- |CORRECT |ANSWER✔✔-exploitation |and |
interference
Plagiorhynchusworms |and |Pucciniarusts |are |parasites |that |share |the |ability |to |change |their |
host's |behavior |in |way |that |- |CORRECT |ANSWER✔✔-increase |the |likelihood |of |their |(the |
parasites') |transmission |to |a |new |host.
, In |the |Lotka-Volterra |predation |model, |a |predator |population |in |the |absence |of |prey |(hosts) |
would
A. |grow |exponentially. |- |CORRECT |ANSWER✔✔-decline |as |predators |die.
Gause's |experiments |with |Parameciumand |Didiniumshowed |- |CORRECT |ANSWER✔✔-
coexistence |of |predator |and |prey |with |oscillating |population |sizes, |but |only |in |the |presence |of |
refuges |for |the |prey |and |predator |reservoirs
The |defensive |tactic |in |which |prey |reduce |their |individual |probability |of |being |eaten |by |
occurring |at |very |high |densities |is |called |- |CORRECT |ANSWER✔✔-. |predator |satiation.
Mycorrhizal |fungi |acquire |_________ |from |their |plant |partners. |- |CORRECT |ANSWER✔✔-
sugars
The |major |benefit |obtained |by |zooxanthellae |algal |cells |from |their |coral |host |is |- |CORRECT |
ANSWER✔✔-nitrogen |from |coral |wastes.
The |"unsuccessful |mutualists" |in |Kathleen |Keeler's |cost-benefit |model |of |mutualism |are |those |
that |- |CORRECT |ANSWER✔✔-give |benefits |to |their |partner, |but |fail |to |receive |benefits |in |
return.
In |most |ecological |communities, |we |find |- |CORRECT |ANSWER✔✔-more |moderately |common |
species |than |rare |or |very |common |ones.
Niches |of |single-celled |algae, |such |as |diatoms, |seem |most |often |to |be |distinguished |by |their |
requirements |for |- |CORRECT |ANSWER✔✔-different |combinations |of |inorganic |nutrients.
Estimates |of |the |number |of |species |present |in |a |community |- |CORRECT |ANSWER✔✔-must, |to |
be |useful, |be |based |on |standardized |sampling |techniques.
Answers
. |In |plants, |"self-thinning" |refers |to |reduction |in |- |CORRECT |ANSWER✔✔-population |density |in
|response |to |competition, |as |population |biomass |increases.
In |most |Zoos, |zookeepers |house |gazelles |and |ostriches |in |the |same |exhibit. |One |possible |
reason |for |keeping |them |together |is |- |CORRECT |ANSWER✔✔-) |interspecific |competition |is |low
In |the |Lotka-Volterra |competition |equations, |the |parameter |a12relates |to |the |- |CORRECT |
ANSWER✔✔-effect |OF |species |2 |ON |population |growth |rate |OF |species |1.
Analysis |of |the |Lotka-Volterra |competition |model |implies |that |two |competitors |can |coexist |
only |when |- |CORRECT |ANSWER✔✔-intraspecific |competition |is |stronger |than |interspecific |
competition.
The |__________ |defines |the |physical |conditions |under |which |a |species |might |live, |in |the |
absence |of |interaction |with |other |species. |- |CORRECT |ANSWER✔✔-fundamental |niche
Competition |in |animals |can |take |the |form |of |- |CORRECT |ANSWER✔✔-exploitation |and |
interference
Plagiorhynchusworms |and |Pucciniarusts |are |parasites |that |share |the |ability |to |change |their |
host's |behavior |in |way |that |- |CORRECT |ANSWER✔✔-increase |the |likelihood |of |their |(the |
parasites') |transmission |to |a |new |host.
, In |the |Lotka-Volterra |predation |model, |a |predator |population |in |the |absence |of |prey |(hosts) |
would
A. |grow |exponentially. |- |CORRECT |ANSWER✔✔-decline |as |predators |die.
Gause's |experiments |with |Parameciumand |Didiniumshowed |- |CORRECT |ANSWER✔✔-
coexistence |of |predator |and |prey |with |oscillating |population |sizes, |but |only |in |the |presence |of |
refuges |for |the |prey |and |predator |reservoirs
The |defensive |tactic |in |which |prey |reduce |their |individual |probability |of |being |eaten |by |
occurring |at |very |high |densities |is |called |- |CORRECT |ANSWER✔✔-. |predator |satiation.
Mycorrhizal |fungi |acquire |_________ |from |their |plant |partners. |- |CORRECT |ANSWER✔✔-
sugars
The |major |benefit |obtained |by |zooxanthellae |algal |cells |from |their |coral |host |is |- |CORRECT |
ANSWER✔✔-nitrogen |from |coral |wastes.
The |"unsuccessful |mutualists" |in |Kathleen |Keeler's |cost-benefit |model |of |mutualism |are |those |
that |- |CORRECT |ANSWER✔✔-give |benefits |to |their |partner, |but |fail |to |receive |benefits |in |
return.
In |most |ecological |communities, |we |find |- |CORRECT |ANSWER✔✔-more |moderately |common |
species |than |rare |or |very |common |ones.
Niches |of |single-celled |algae, |such |as |diatoms, |seem |most |often |to |be |distinguished |by |their |
requirements |for |- |CORRECT |ANSWER✔✔-different |combinations |of |inorganic |nutrients.
Estimates |of |the |number |of |species |present |in |a |community |- |CORRECT |ANSWER✔✔-must, |to |
be |useful, |be |based |on |standardized |sampling |techniques.
