BIO 250 EXAM 2 QUESTIONS WITH 100% CORRECT
ANSWERS; VERIFIED; LATEST UPDATE
Define birth rate - correct answer- Number of births per capita
(person) per unit time
Define dispersal - correct answer- Movement of an organism from
its place of birth to another location
Define equilibrium patch occupancy - correct answer- The patch
occupancy at which a population size does not change at the given
colonization and extinction rate
Define fecundity - correct answer- The ability to reproduce
Define fertility - correct answer- The average number of offspring
per reproductive female
Define local extinction - correct answer- When the last organism of a
distinct population dies
Describe a periodic species based on Winemiller's and Rose's
classification - correct answer- A species which matures late and
,have many offspring, but low juvenile survivorship - suited for infrequent
periods of favorable conditions
Describe a stage of life in which an organism is sessile? - correct
answer- The organism is attached to a surface (such as a rock)
Describe an equilibrium species based on Winemiller's and Rose's
classification - correct answer- A species which matures at older
ages, produce few offspring with high juvenile survivorship - suited to
more stable conditions
Describe an opportunistic species based on Winemiller's and Rose's
classification - correct answer- A species with early maturation and
age of reproduction with small number of offspring - suited to exploit
unpredictable environmental conditions
Describe aposematism as a defense against predators - correct answer-
Using warning colors or sounds to alert predators of poison
Describe chemical defense against herbivores - correct answer-
Producing noxious chemicals that are poisonous to herbivores
Describe chemical defense against predation - correct answer-
Producing chemicals that are noxious/ poisonous to predators
, Describe crypsis as a defense against predators - correct answer-
Camouflaged colors, shapes, etc.
Describe Grime's species classification triangle and how to read it -
correct answer- A triangle on which a species can be classified based
on how frequently it is affected by competition, disturbance, and stress
-Read competition to the right
-Read disturbance diagonal down/left
-Read stress up/left
Describe how someone would study a cohort using the dynamic method
- correct answer- Following a single cohort over time as they age
Describe how someone would study a cohort using the static method -
correct answer- Studies multiple cohorts over time as they reach a
single age range (e.g. studying elk between 2-5 yrs of age for 15 years)
Describe mechanical defense against herbivores - correct answer-
Developing structures such as thorns to prevent herbivores from eating
Describe mimicry as a defense against predators - correct answer-
Looking or sounding like a species that predators avoid
ANSWERS; VERIFIED; LATEST UPDATE
Define birth rate - correct answer- Number of births per capita
(person) per unit time
Define dispersal - correct answer- Movement of an organism from
its place of birth to another location
Define equilibrium patch occupancy - correct answer- The patch
occupancy at which a population size does not change at the given
colonization and extinction rate
Define fecundity - correct answer- The ability to reproduce
Define fertility - correct answer- The average number of offspring
per reproductive female
Define local extinction - correct answer- When the last organism of a
distinct population dies
Describe a periodic species based on Winemiller's and Rose's
classification - correct answer- A species which matures late and
,have many offspring, but low juvenile survivorship - suited for infrequent
periods of favorable conditions
Describe a stage of life in which an organism is sessile? - correct
answer- The organism is attached to a surface (such as a rock)
Describe an equilibrium species based on Winemiller's and Rose's
classification - correct answer- A species which matures at older
ages, produce few offspring with high juvenile survivorship - suited to
more stable conditions
Describe an opportunistic species based on Winemiller's and Rose's
classification - correct answer- A species with early maturation and
age of reproduction with small number of offspring - suited to exploit
unpredictable environmental conditions
Describe aposematism as a defense against predators - correct answer-
Using warning colors or sounds to alert predators of poison
Describe chemical defense against herbivores - correct answer-
Producing noxious chemicals that are poisonous to herbivores
Describe chemical defense against predation - correct answer-
Producing chemicals that are noxious/ poisonous to predators
, Describe crypsis as a defense against predators - correct answer-
Camouflaged colors, shapes, etc.
Describe Grime's species classification triangle and how to read it -
correct answer- A triangle on which a species can be classified based
on how frequently it is affected by competition, disturbance, and stress
-Read competition to the right
-Read disturbance diagonal down/left
-Read stress up/left
Describe how someone would study a cohort using the dynamic method
- correct answer- Following a single cohort over time as they age
Describe how someone would study a cohort using the static method -
correct answer- Studies multiple cohorts over time as they reach a
single age range (e.g. studying elk between 2-5 yrs of age for 15 years)
Describe mechanical defense against herbivores - correct answer-
Developing structures such as thorns to prevent herbivores from eating
Describe mimicry as a defense against predators - correct answer-
Looking or sounding like a species that predators avoid
