Quiz about 3.1-An introduction to biodiversity Part -2

Question 1

Biodiversity refers to:

Accepted Answer

All of the above

Answer

The number of species in an area

Answer

The complexity of an area

Answer

The health of an area

Question 2

Which of the following is NOT a way to measure biodiversity?

Accepted Answer

Ecological diversity

Answer

Species diversity

Answer

Habitat diversity

Answer

Genetic diversity

Question 3

Richness in biodiversity refers to:

Accepted Answer

The number of species in an area

Answer

The relative abundance of each species

Answer

The variability of a community

Answer

The complexity of an ecosystem

Question 4

What does the Simpson's index measure?

Accepted Answer

Species evenness

Answer

Species richness

Answer

Genetic diversity

Answer

Habitat diversity

Question 5

Genetic diversity refers to:

Accepted Answer

The number of genes within a species

Answer

The number of species within an area

Answer

The variability of ecological niches

Answer

The complexity of an ecosystem

Question 6

Which type of diversity is most likely to lead to an increase in the other two types?

Accepted Answer

Habitat diversity

Answer

Species diversity

Answer

Genetic diversity

Answer

Ecological diversity

Question 7

Conservation aims to:

Accepted Answer

Protect habitats and ecosystems

Answer

Increase human-made disturbances

Answer

Exploit natural resources unsustainably

Answer

Accelerate the rate of extinction

Question 8

How can the effects of human activities on ecosystems be assessed?

Accepted Answer

By using diversity indices like Simpson's index

Answer

By comparing species richness in different areas

Answer

By measuring the physical characteristics of species

Answer

By studying the variability of ecological niches

Question 9

Hotspots are areas that:

Accepted Answer

Contain large numbers of endemic species

Answer

Have low species richness

Answer

Are heavily disturbed by human activities

Answer

Exhibit low genetic diversity

Question 10

Which of the following is NOT a factor that affects the assessment of species richness?

Accepted Answer

Habitat type

Answer

Sampling technique

Answer

Sample size

Answer

Relative abundance of species

Question 11

Diversity indices work best when comparing:

Accepted Answer

Similar groups of organisms

Answer

Broader groups of organisms

Answer

Species from different regions

Answer

All animal species in an area

Question 12

Values of diversity indices are:

Accepted Answer

Relative to each other

Answer

Absolute measurements

Answer

Fixed scales

Answer

Indicators of community composition

Question 13

The term biodiversity can refer to:

Accepted Answer

All of the above

Answer

Species diversity

Answer

Habitat diversity

Answer

Genetic diversity

Question 14

Biodiversity measurements based on species richness alone may be misleading because:

Accepted Answer

All of the above

Answer

It does not account for disturbance to ecosystems

Answer

It does not reflect the complexity of an ecosystem

Answer

It does not consider genetic variability

Question 15

Conservation biologists use diversity indices to:

Accepted Answer

All of the above

Answer

Identify areas of high biodiversity

Answer

Explore and protect hotspots

Answer

Quantify the impacts of human activities

Question 16

What is the meaning of the term "biodiversity" and how was it popularized?

Accepted Answer

Biodiversity refers to the variety of life on Earth. It was popularized by ecologist EO Wilson in the 1980s.

Answer

Biodiversity refers to the variety of habitats on Earth. It was popularized by conservation biologists.

Answer

Biodiversity refers to the variety of genes in a species. It was popularized by geneticists in the 1990s.

Answer

Biodiversity refers to the variety of ecosystems on Earth. It was popularized by environmentalists in the 1970s.

Question 17

How is species diversity measured, and what does it indicate about an ecosystem?

Accepted Answer

Species diversity is measured by the number of species present and their relative abundance. It indicates the complexity of an ecosystem.

Answer

Species diversity is measured by the number of individuals in a population. It indicates the population's size.

Answer

Species diversity is measured by the amount of genetic variation within a species. It indicates the adaptability of a population.

Answer

Species diversity is measured by the variety of habitats in an area. It indicates the stability of an ecosystem.

Question 18

What are richness and evenness, and how do they contribute to biodiversity?

Accepted Answer

Richness refers to the number of species in an area, while evenness refers to the relative abundance of each species. They contribute to species diversity.

Answer

Richness refers to the number of species in an area, while evenness refers to the genetic variation within a species. They contribute to ecosystem stability.

Answer

Richness refers to the relative abundance of each species, while evenness refers to the number of individuals in a population. They contribute to habitat diversity.

Answer

Richness refers to the genetic variation within a species, while evenness refers to the complexity of an ecosystem. They contribute to species diversity.

Question 19

How can communities be described and compared using diversity indices?

Accepted Answer

Communities can be described and compared based on their species diversity. Diversity indices like Simpson's index provide meaningful data for comparisons.

Answer

Communities can be described and compared based on their habitat diversity. It helps identify areas of high biodiversity.

Answer

Communities can be described and compared based on their genetic diversity. It helps identify areas of high endemism.

Answer

Communities can be described and compared based on their ecosystem complexity. It helps assess the impacts of human activities.

Question 20

Why do measurements of species richness depend on sample size?

Accepted Answer

Large sample sizes are required for accurate measurement of species richness.

Answer

Small sample sizes lead to overestimation of species richness.

Answer

Large sample sizes lead to underestimation of species richness.

Answer

Small sample sizes are sufficient to accurately measure species richness.

Question 21

Is biodiversity a measure of the number of species

Accepted Answer

False

Answer

True

Question 22

Can biodiversity be measured in three different ways: species diversity, habitat diversity, and genetic diversity?

Accepted Answer

True

Answer

False

Question 23

Does species diversity refer to the variety of species per unit area?

Accepted Answer

True

Answer

False

Question 24

Does richness refer to the number of diversities in an area?

Accepted Answer

False

Answer

True

Question 25

Does evenness refer to the relative abundance of one species in a community?

Accepted Answer

False

Answer

True

Question 26

Can low evenness in a community indicate dominance by one or a few species?

Accepted Answer

False

Answer

True

Question 27

Are diversity indices used to describe and compare communities?

Accepted Answer

True

Answer

False

Question 28

Can low diversity be evidence of pollution, eutrophication, or recent colonization of a site?

Accepted Answer

True

Answer

False

Question 29

Are sample size and appropriate sample sizes are not important for accurate measurement of species richness?

Accepted Answer

False

Answer

True

Question 30

Does genetic diversity refer to the diversity of genes found within one individual of a species?

Accepted Answer

True

Answer

False

Question 31

Can genetic diversity also refer to the diversity of genes in all species within an area?

Accepted Answer

True

Answer

False

Question 32

Has the understanding of diversity changed as scientific knowledge has increased?

Accepted Answer

True

Answer

False

Question 33

Can the term "biodiversity" refer to heterogeneity at the species, habitat, or genetic level?

Accepted Answer

True

Answer

False

Question 34

Does an increase in habitat diversity likely lead to an increase in species and genetic diversity?

Accepted Answer

True

Answer

False

Question 35

Does conservation aim to protect habitats, ecosystems, and species from human-made disturbances?

Accepted Answer

Yes

Answer

No

Question 36

Can the effects of human activities on ecosystems be assessed given their complexity?

Accepted Answer

Yes

Answer

No

Question 37

Are diversity indices not important in identifying areas that should be protected against damaging human activities?

Accepted Answer

False

Answer

True

Question 38

Is the assessment of species richness affected by sampling technique, sample size, and relative abundance of species?

Accepted Answer

Yes

Answer

No

Question 39

Can values of diversity indices be compared between different areas, but individual values alone are not useful?

Accepted Answer

Yes

Answer

No

Question 40

Is species diversity within a community a component of the broader description of the biodiversity of an entire ecosystem?

Accepted Answer

Yes

Answer

No

Question 41

Are richness and evenness components of biodiversity?

Accepted Answer

Yes

Answer

No

Question 42

Does low evenness in a community imply a complex ecosystem with many different species occupying various niches?

Accepted Answer

No

Answer

Yes

Question 43

Can low evenness in a community indicate dominance by one or a few species and lower complexity?

Accepted Answer

No

Answer

Yes

Question 44

Can diversity indices, such as Simpson's index, be used to describe and compare communities?

Accepted Answer

Yes

Answer

No

Question 45

Is the number of animals commonly used to assess biodiversity in an area?

Accepted Answer

No

Answer

Yes

Question 46

Can accurate measures of species richness require appropriate sample sizes, especially for small organisms like insects?

Accepted Answer

Yes

Answer

No

Question 47

Does the absence of absolute measurements for diversity indices make numbers alone insignificant?

Accepted Answer

No

Answer

Yes

Question 48

Are there other examples in science where relative measurement systems are used instead of absolute measurements?

Accepted Answer

Yes

Answer

No

Question 49

Is habitat diversity associated with the variety of ecological niches within an area?

Accepted Answer

Yes

Answer

No

Question 50

Do woodlands generally have lower habitat diversity compared to deserts?

Accepted Answer

No

Answer

Yes

Question 51

Can the term "biodiversity" refer to the heterogeneity of a community, ecosystem, or biome at different levels?

Accepted Answer

Yes

Answer

No

Question 52

Is an increase in habitat diversity likely to lead to an increase in species and genetic diversity?

Accepted Answer

Yes

Answer

No

Question 53

Do conservation activities aim to protect habitats, ecosystems, and species from human-made disturbances?

Accepted Answer

Yes

Answer

No

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