Ecology

Question 1 of 45

1

Four results of genetic drift in a small poopulation:

Select one or more of the following:

fixation
loss of genetic variation
increase in mildly harmful alleles
increased differences between populations
increased genetic variation
stabilizing selection

Explanation

Question 2 of 45

1

Prairie chickens showed what results of genetic drift:

Select one or more of the following:

decrease in genetic variation
increase in mildly harmful alleles
fixation
increased differences from other populations

Explanation

Question 3 of 45

1

Gene flow can result in:

Select one or more of the following:

increased similarities between populations
introduction of new alleles
decrease in genetic variation

Explanation

Question 4 of 45

1

Mosquitoes in africa were an example of gene flow

Select one of the following:

True
False

Explanation

Question 5 of 45

1

Fill the blank space to complete the text.

are features of organisms that improve their ability to survive and reproduce.

Explanation

Question 6 of 45

1

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Soapberry bugs and the goldenrain vine were an example of ( adaptive evolution, natural selection, disruptive selection ).

Explanation

Question 7 of 45

1

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( Clines, Temperate zones, Inter tropical convergence zones ) are patterns of change in a characteristic pattern over a geographic region.

Explanation

Question 8 of 45

1

In drosophila, the AdHs gene is less functional in cold, so the frequency increases with latitude

Select one of the following:

True
False

Explanation

Question 9 of 45

1

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Bentgrass at mine sites was an example of ( natural selection, genetic drift, sexual selection ) overcoming gene flow

Explanation

Question 10 of 45

1

Constraints on natural selection:

Select one or more of the following:

evolutionary history
ecological trade offs
lack of genetic variation
environment
cline

Explanation

Question 11 of 45

1

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( Genetic drift, Gene flow ) can result in reproductive barriers, but ( gene flow, genetic drift ) can prevent this from happening.

Explanation

Question 12 of 45

1

One introduced species started a cascade of speciation in which example:

Select one of the following:

Maggot flies, wasps and apples
Planorbella and Ribeiroia
White-tailed deer and ticks

Explanation

Question 13 of 45

1

Examples of life history characteristics are

Select one or more of the following:

Amount and timing of reproduction
Age and size at sexual maturity
Survival and mortality rates
Diet

Explanation

Question 14 of 45

1

Clown fish have a size hierarchy to reduce conflict

Select one of the following:

True
False

Explanation

Question 15 of 45

1

Phenotypic plasticity was occurring in these species:

Select one or more of the following:

Evergreens in different climates
Spadefoot toads
Prairie hens
Aspen trees

Explanation

Question 16 of 45

1

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Phenotypic plasticity may be a ( continuous, limited, random, discrete ) range of sizes, or may have discrete intervals, called ( morphs, life history stages, discrete intervals ).

Explanation

Question 17 of 45

1

C. elegans was used as an example of:

Select one of the following:

Pros and cons of asexual vs sexual reproduction
Phenotypic plasticity
Polyphenism

Explanation

Question 18 of 45

1

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( Semelparous, Iteroparous, Metamorphic ) species reproduce once in a lifetime, ( iteroparous, semelparous, polyphenic ) species reproduce many times in a lifetime.

Explanation

Question 19 of 45

1

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( r- slection, K-selection, intrinsic selection ) is the growth strategy that is rapid and advantageous in new environments. ( K-selection, r-selection, intrinsic selection ) is the growth strategy that is slower and is valuable in high-density environments.

Explanation

Question 20 of 45

1

Low stress, low disturbance is best for ❌. High stress, low-disturbance is best for ❌ with ❌. Low stress, high disturbance is best for ❌, with ❌.

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competitive plants

stress-tolerant plants

slow rates of water and nutrient use

ruderal plants

heavy investment in seed production

Explanation

Question 21 of 45

1

Lesser black-beaked gulls were an example of a tradeoff between clutch size and survival rate of offspring.

Select one of the following:

True
False

Explanation

Question 22 of 45

1

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High adult survival rates would favour allocating energy to ( growth, reproduction ).

Explanation

Question 23 of 45

1

The Nassau grouper's change from being small and living in algae clumps to being larger and living in rocky areas is an example of a morph.

Select one of the following:

True
False

Explanation

Question 24 of 45

1

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An adult mole salamander living in aquatic environments is an example of ( paedomorphism, niche shift, a morph ).

Explanation

Question 25 of 45

1

A ❌ cause is how the behaviour occurs, an ❌ cause is the evolutionary reason behind the behaviour. The ❌ is more interesting to biologists.

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proximate

ultimate

latter

former

Explanation

Question 26 of 45

1

Cockroaches gaining an aversion to glucose after generations of exposure to an insecticide trap containing glucose is an example of:

Select one of the following:

adaptive behavioural change
evolution
niche shift

Explanation

Question 27 of 45

1

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Old field mouse and deer mouse case study found that tunnel length is controlled by ( one loci, two loci, behaviour ).

Explanation

Question 28 of 45

1

P= E/t is an equation relevant to:

Select one of the following:

foraging theory
herbivory
competition
carrying capacity

Explanation

Question 29 of 45

1

Handling time refers to how long it takes a parent to bring offspring to maturity.

Select one of the following:

True
False

Explanation

Question 30 of 45

1

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Marginal value theorem states that an animal should stay in a patch until energy gain ( declines, increases ) to average energy gain for the habitat.

Explanation

Question 31 of 45

1

Individuals from a single fertilization are a

Select one of the following:

genet
genetic
peanut

Explanation

Question 32 of 45

1

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( Regular, Clumped, Random ) dispersion can be the result of competition. Co-operative breeding can occur in ( high value, low value ) habitats, when ( high quality, low quality ) habitat is rare.

Explanation

Question 33 of 45

1

N= (M*C)/R is the equation for line transect abundance

Select one of the following:

True
False

Explanation

Question 34 of 45

1

Relative population size compares number of sightings in an area to effort or another area. Considered to model actual population

Select one of the following:

True
False

Explanation

Question 35 of 45

1

lambda= Nt+1/Nt is the equation for growth rate

Select one of the following:

True
False

Explanation

Question 36 of 45

1

❌ growth has a constant growth rate at ❌ periods, Nt+1= lambda(Nt). ❌ growth has ❌ reproduction dN/dt= rN.

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Geometric

Exponential

constant

finite

discrete

Explanation

Question 37 of 45

1

Density independent factors regulate population size.

Select one of the following:

True
False

Explanation

Question 38 of 45

1

The logistic equation is

Select one of the following:

Nt+1=lambda(N)
dN/dt= rN
dN/dt= rN(1-(N/K)

Explanation

Question 39 of 45

1

Demographic stochasticity

Select one of the following:

chance events affect reproduction and survival
finite increase decreases as the carrying capacity is approached
cyclic events affect an individuals survival rate

Explanation

Question 40 of 45

1

❌- when chance event move the individual away from the norm while birth and death rates remain constant. ❌-changes in environment cause change in birth and death rates. ❌- small populations have decreased growth as it becomes harder to find a mate.

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Demographic stochasticity

Environmental stochasticity

Allee effect

Explanation

Question 41 of 45

1

Metapopulation is an analysis of all populations in an environment

Select one of the following:

True
False

Explanation

Question 42 of 45

1

Amensalism is where one species is harmed and the other is ❌.

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unaffected

decreased

increased

driven to extinction

Explanation

Question 43 of 45

1

This is the equation for the

Select one of the following:

Lotka-volterra competition model
logistic growth

Explanation

Question 44 of 45

1

	Created by Lindsay Daly about 10 years ago

midterm ecology 2483a

Ecology

Question 1 of 45

Four results of genetic drift in a small poopulation:

Select one or more of the following:

Explanation

Question 2 of 45

Prairie chickens showed what results of genetic drift:

Select one or more of the following:

Explanation

Question 3 of 45

Gene flow can result in:

Select one or more of the following:

Explanation

Question 4 of 45

Mosquitoes in africa were an example of gene flow

Select one of the following:

Explanation

Question 5 of 45

Fill the blank space to complete the text.

are features of organisms that improve their ability to survive and reproduce.

Explanation

Question 6 of 45

Select from the dropdown list to complete the text.

Soapberry bugs and the goldenrain vine were an example of adaptive evolution natural selection disruptive selection( adaptive evolution, natural selection, disruptive selection ).

Explanation

Question 7 of 45

Select from the dropdown list to complete the text.

Clines Temperate zones Inter tropical convergence zones( Clines, Temperate zones, Inter tropical convergence zones ) are patterns of change in a characteristic pattern over a geographic region.

Explanation

Question 8 of 45

In drosophila, the AdHs gene is less functional in cold, so the frequency increases with latitude

Select one of the following:

Explanation

Question 9 of 45

Select from the dropdown list to complete the text.

Bentgrass at mine sites was an example of natural selection genetic drift sexual selection( natural selection, genetic drift, sexual selection ) overcoming gene flow

Explanation

Question 10 of 45

Constraints on natural selection:

Select one or more of the following:

Explanation

Question 11 of 45

Select from the dropdown lists to complete the text.

Genetic drift Gene flow( Genetic drift, Gene flow ) can result in reproductive barriers, but gene flow genetic drift( gene flow, genetic drift ) can prevent this from happening.

Explanation

Question 12 of 45

One introduced species started a cascade of speciation in which example:

Select one of the following:

Explanation

Question 13 of 45

Examples of life history characteristics are

Select one or more of the following:

Explanation

Question 14 of 45

Clown fish have a size hierarchy to reduce conflict

Select one of the following:

Explanation

Question 15 of 45

Phenotypic plasticity was occurring in these species:

Select one or more of the following:

Explanation

Question 16 of 45

Select from the dropdown lists to complete the text.

Phenotypic plasticity may be a continuous limited random discrete( continuous, limited, random, discrete ) range of sizes, or may have discrete intervals, called morphs life history stages discrete intervals( morphs, life history stages, discrete intervals ).

Explanation

Question 17 of 45

C. elegans was used as an example of:

Select one of the following:

Explanation

Question 18 of 45

Select from the dropdown lists to complete the text.

Semelparous Iteroparous Metamorphic( Semelparous, Iteroparous, Metamorphic ) species reproduce once in a lifetime, iteroparous semelparous polyphenic( iteroparous, semelparous, polyphenic ) species reproduce many times in a lifetime.

Explanation

Question 19 of 45

Select from the dropdown lists to complete the text.

Explanation

Question 20 of 45

Low stress, low disturbance is best for ❌. High stress, low-disturbance is best for ❌ with ❌. Low stress, high disturbance is best for ❌, with ❌.

Soapberry bugs and the goldenrain vine were an example of ( adaptive evolution, natural selection, disruptive selection ).

( Clines, Temperate zones, Inter tropical convergence zones ) are patterns of change in a characteristic pattern over a geographic region.

Bentgrass at mine sites was an example of ( natural selection, genetic drift, sexual selection ) overcoming gene flow

( Genetic drift, Gene flow ) can result in reproductive barriers, but ( gene flow, genetic drift ) can prevent this from happening.

Phenotypic plasticity may be a ( continuous, limited, random, discrete ) range of sizes, or may have discrete intervals, called ( morphs, life history stages, discrete intervals ).

( Semelparous, Iteroparous, Metamorphic ) species reproduce once in a lifetime, ( iteroparous, semelparous, polyphenic ) species reproduce many times in a lifetime.

High adult survival rates would favour allocating energy to ( growth, reproduction ).

An adult mole salamander living in aquatic environments is an example of ( paedomorphism, niche shift, a morph ).

Old field mouse and deer mouse case study found that tunnel length is controlled by ( one loci, two loci, behaviour ).

Marginal value theorem states that an animal should stay in a patch until energy gain ( declines, increases ) to average energy gain for the habitat.

( Regular, Clumped, Random ) dispersion can be the result of competition. Co-operative breeding can occur in ( high value, low value ) habitats, when ( high quality, low quality ) habitat is rare.