Question 45 The term… (K-N) … refers to… K Question 45 options: A) B) C) D) Ques

Question

Question 45

The term… (K-N) … refers to…

                      K

Question 45 options:

A)

B)

C)

D)

Question 46

Form of competition where one competitor physically inhibits another from obtaining a resource through direct contact… i.e. fighting, physical displacement.

Question 46 options:

Exploitative

Interference

Exclusion

Character displacement

None of the above

Question 47

The terms circled in the formulas to the right refer to the effects of ____ on population size.

Question 47 options:

A)

B)

Interspecific competition

C)

Both A and B

D)

Predation

Question 48

Question 48 options:

competitive effect of species 1 on species 2

competitive effect of species 2 on species 1

effect of intraspecific competition in species 1

effect of intraspecific competition in species 2

Question 49

The competitive effect of one species on another (interspecific competition) is related to…

Question 49 options:

how strongly each competitor can obtain and retain the limiting resource

the population density of the competitors

the degree of niche overlap

all of the above

none of the above

Question 50

Which of the following statements about prey choice is not correct?

Question 50 options:

Predators may concentrate their attacks on old prey because these have lower stamina.

Predators may concentrate their attacks on young prey because these have lower stamina.

Predators may concentrate on sick prey because these are less effective at outmaneuvering the predator.

Predators avoid prey that are in their prime in order to maintain a high reproductive rate in the prey population, and hence 'grow' prey for the future.

Question 51

Optimal foraging theory predicts that predators should include less prey categories in their diet (become specialists)…

Question 51 options:

where competitor density is high

where the environment is unproductive.

if prey handling times are long compared to search times.

if prey handling times are short compared to search times.

Question 52

Which of the following is not necessarily true of metapopulations?

Question 52 options:

They are comprised of collections of subpopulations.

Each subpopulation has a realistic chance becoming extinct.

Each subpopulation is linked to all other subpopulations by dispersal.

The stability of the whole metapopulation results from a balance between the extinction of subpopulations and the colonization of uninhabitable sites.

Question 53

Innate capacity of a population to increase in size.

Question 53 options:

Mortality

Intrinsic rate of growth (r)

Natality

Realized niche

Question 54

General 'law' in ecology stating that population size (and growth) is limited by the resource that is least available relative to its demand.

Question 54 options:

Lotka-Volterra Law

Verhulst's Law

Leibig's Law

Malthusian Law

Question 55

Which of these isocline depictions represent a scenario which may give rise to stable coexistence between 2 competing species?

Question 55 options:

A

B

C

D

A)

Density dependent factors

B)

Intraspecific competition

C)

Interspecific competition

D)

A and B, but not C

Explanation / Answer

(45)density dependent factors

(K-N)/k us density dependent factor because k represents carrying capacity of a population and N represents population size and these factors are density dependent.

(46)Interference

It is the competion in which organisms interfere with other organisms usage of resources whereas in other competitions it is not the case.

(47)Interspecific competition

This competition is among two different species which is indicated as 1 and 2 in the equation whereas intraspecefic competion is among same species.

(48)competitive effect of species 1 on species 2

As this equation shows the relation between two species that is interspecific competition.

Where,12 indicate effect of species 2 on species 1

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.