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Ecology Quiz 01

Total questions: 50

Worksheet time: 17mins

Name
Class
Date
1.

(a)   coined the term ECOLOGY?

2.

“The growth of a plant is dependent on the essential nutrient present in minimum amount" - This law is known as

(a)  

3.

Which of the following statement is true about 'Population'?

a)

In Unitary population, – growth of an individual is determinate and unpredictable

b)

A group of ramets developing from a genet is known as Deme

c)

Crude Density is the total number of individuals or biomass per unit of the total space

d)

Natality Rate is expressed as the number of offsprings produced per organism per unit time

4.

_____________ is the ratio of male and female at the time of conception while ______________________ is the ratio of male and female at the time of birth.

(a)  

5.

The statement 'Individuals living in ‘groups’ have higher survival value' refers to (a)   principle.

6.

The manner in which individuals of a population are distributed in space and time is known as (a)   .

7.

The symbol 'r' in equation dN/dt = (b-d)N = rN stands for _______________________________________________.

a)

Intrinsic growth rate factor

b)

Malthusian factor

c)

None of a or b

d)

both a and b

8.
A relationship between two organisms in which one organism benefits and the other is unharmed...
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
9.

What is the order of succession shown in this figure?

(bring your cursor on this picture, it will look big automatically, no need to click)

a)

A, B, C, D

b)

B, A, D, C

c)

C, D, A, B

d)

D, A, B, C

10.
After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?
a)
Lichens → Shrubs → Grasses → Trees
b)
Lichens → tree → shrubs→Grasses
c)
Grasses → Lichens → Shrubs → Trees
d)
Lichens → Grasses → Shrubs → Trees
11.
Organisms of the same species living in the same environment together
a)
Population
b)
Community
c)
Ecosystem
d)
Environment
12.
Sunlight, water, rocks are all Biotic Factors of an ecosystem.
a)
False
b)
True
13.
This is the part of the Earth that supports life
a)
Lithosphere
b)
Hydrosphere
c)
Biosphere
d)
Geosphere
14.
An area where an organism finds food, shelter and water in a specific arrangement
a)
niche
b)
biosphere
c)
biome
d)
habitat
15.
Organisms that look similar and can produce fertile offspring
a)
Species
b)
Fish
c)
Community
d)
Trees
16.

THESE SPECIES ONLY MAKE A FEW BABIES IN THEIR LIFETIME AND THEY INVEST IN THEM HEAVILY...

a)

K-SELECTED

b)

R-SELECTED

c)

P-SELECTED

d)

Z-SELECTED

17.

_____ have a high reproductive rates, short-life spans, and do not care for their offspring.

a)

R-strategists

b)

K-strategists

c)

B strategists

d)

Z-Strategists

18.
What growth pattern describes a population whose growth rate slows or stops following a period of exponential growth?
a)
logistic growth
b)
population growth
c)
exponential growth
d)
predator-prey cycle
19.
Largest number of individuals of a population that the environment can support...  
a)
carrying capacity
b)
population crash
c)
lag phase
d)
mutualism
20.
Type of growth that occurs under ideal conditions?
a)
predator-prey cycle
b)
logistic
c)
exponential
21.
What factor describes when populations decrease because animals are moving out of a population?
a)
Emigration
b)
Limiting Factors
c)
Immigration
d)
Exponential Growth
22.
Logistic growth has 3 phases. In Phase 1, the population grows rapidly. In Phase 2, population grows slowly. In Phase 3, growth stops. What causes growth to stop in the 3rd phase of logistic growth?
a)
Emigration
b)
Immigration
c)
Exponential Growth
d)
Carrying Capacity
23.
Which limiting factor is independent of the number of individuals in a population?
a)
competition
b)
parasitism/disease
c)
stress
d)
natural disasters
24.
Which of the following is TRUE of predator/prey relationships?
a)
The amount of prey does not affect the number of predators.
b)
Herbivores are limited by the number of prey in an ecosystem.
c)
Humans are not considered predators.
d)
The number of predators is determined by available prey.
25.

A group of fruit-eating birds in a rainforest, nectar-feeding insects, or a guild of forest-floor dwelling herbs is known as (a)   .

26.

A species that has a disproportionate impact on the community relative to its abundance is known as (a)   .

27.

Which of the following is correct about species diversity?

a)

Species diversity is the number of species and number of individuals of each species in a given area.

b)

Species diversity is only the number of species that live in an area.

c)

Species diversity includes only the number of individuals of each species on earth.

d)

Species diversity is how many species go extinct each year.

28.

High beta-diversity implies __________ similarity between species composition of different habitats

a)

High

b)

Low

29.

An ecosystem gradually merges with an adjoining one through a transition zone is called

a)

Ecological niche

b)

Ecological footprint

c)

Ecotone

d)

Shore effect

30.

Coral reefs in India can be seen In

a)

Andaman nicobar

b)

Himalayan region

c)

Uttarpradesh

d)

Maharashtra

31.

All the gene of a population are called

a)

Gene pool

b)

Genome

c)

Gene bunch

d)

Gene population

32.

Study of individual organism

a)

Synecology

b)

Population ecology

c)

Autecology

d)

Human ecology

33.

What is canopy

a)

Uppermost layer of forest

b)

Ground level of forest

c)

Soil in forest

d)

Climbers on trees

34.

What is edge species

a)

Species occur abundantly in the Ecotone

b)

Species on the verge of extinction

c)

Rare species

d)

Endemic species

35.
This is known as a relationship in which one organism benefits, while the other is unaffected.
a)
Parasitism
b)
Mutualism
c)
Immigration
d)
Commensalism
36.
A clownfish uses a sea anenome as a safe place to live. While living there, the clownfish lures in food for the anenome. This is an example of what type of relationship?
a)
Predator-Prey
b)
Commensalism
c)
Mutualism
d)
Parasitism
37.
A mosquito feeds off of the blood of different organisms. This usually causes discomfort to the organism and sometimes disease and death. This is an example of:
a)
Parasitism
b)
Decomposition
c)
Commensalism
d)
Mutualism
38.
A feeder fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of:
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Decomposition
39.
First species to arrive in an area
a)
invasive species
b)
abiotic components
c)
pioneer species
d)
parasites
40.

a relationship between two species in which both species compete for limited resources such that both species are negatively affected by the relationship

a)

Symbiosis

b)

interspecific competition

c)

species richness

d)

species-area effect

41.

the differentiation of niches that enables similar species to coexist in a community

a)

character displacement

b)

climax community

c)

resource partitioning

d)

pioneer species

42.
The ecological niches of three bird species are shown in the diagram. What is the advantage of each bird species having a different niche?
a)
As more birds feed higher in the tree, available energy increases.
b)
More abiotic resources are available for each bird.
c)
Predators are less likely to feed on birds in a variety of locations.
d)
There is less competition for food.
43.
When put together, one organism outcompetes the other for resources.  This is an example of:
a)
competitive exclusion principle
b)
speciation
c)
biological niche
d)
evolution
44.

In a predator-prey relationship, when the population of the predator increases, the population of the prey will ____________.

a)

Increase

b)

Remain Stable

c)

Decrease

d)

Change unpredictably

45.

Which of the following symbol sets best represents parasitism?

a)

+/+

b)

+/-

c)

+/0

d)

-/-

46.

Wasps often lay their eggs just inside the eggs of butterflies. The wasp larva (baby wasps) are able to get lots of nutrients and protection from the butterfly/caterpillar egg while its developing. After the caterpillar is born, the wasps continue lurking in the flesh of the caterpillar, soaking up more nutrients and drinking its blood. The wasp larva must keep its host alive, so it avoids damaging the vital organs.

What type of symbiosis is being described?

a)

predator/prey

b)

competition

c)

commensalism

d)

parasitism

47.

What is the term for an organism that is not native to a particular area?

a)

dispersed species

b)

invasive species

c)

native species

d)

endemic species

48.

What term is described as: "A local population of organisms that have similar genes, interbreed, and produce offspring"?

a)

Deme

b)

Natality

c)

Fecundity

d)

Metapopulation

49.

What term is described as: "A specific role of a species within an ecosystem, including its use of resources, and relationships with other species"?

a)

Metapopulation

b)

Ecological niche

c)

Fecundity

d)

Immigration

50.

What term is described as: "The ability to produce offspring"?

a)

Mortality

b)

Fecundity

c)

Natality

d)

Seasonality

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