Species Diversity

Q.

What are alpha, beta, and gamma diversity?

Q.

Which one of the following has maximum genetic diversity in India?

1. Teak

2. Tea

3. Wheat

4. Mango

Q.

Why Is India Called a Mega Diversity Centre?

Q. _________ divided earth into six biogeographic realms based on the distribution of animals and plants.

1. Wallace
2. Darwin
3. Louis Pasteur
4. Hugo de Vries

Q.

The species diversity of plants (22%) is much less than that of animals (72%). What could be the explanations to how animals achieved greater diversification?

Q. Which group of animal has the greatest species diversity?

1. Mammals
2. Reptiles
3. Fishes
4. Insects

Q. Which of the following is not a criteria, for a area to be considered as a biodiversity hotspot?

1. More interspecific competition
2. Habitat loss
3. Endemism
4. species richness

Q. Study the four statements (a–d) given below and select two correct ones out of them:

1. A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers

2. Predator starfish Pisaster helps in maintaining species diversity of some invertebrates

3. Predators ultimately lead to the extinction of prey species


4. Production of chemicals such as nicotine, strychnine by the plants are metabolic disorders

The two correct statements are

1. 
   2 and 3
2. 
   3 and 4
3. 
   1 and 4
4. 
   1 and 2

Q.

Biodiversity is determined by

1. Number of individuals in an area

2. Species richness

3. Evenness

4. BothB and C

Q. State whether true or false:
Species diversity refers to biodiversity that exists between various species.

1. True
2. False

Q. Which group of animal has the greatest species diversity?

1. Mammals
2. Reptiles
3. Fishes
4. Insects

Q. Identify the correct statements from the following.
(I) Predator helps in maintaining species diversity
(II) A lion eating a deer and a sparrow eating grain are ecologically similar in being consumers
(III) Predators ultimately lead to the extinction of prey species
(IV) Production of chemicals such as nicotine, strychnine by plants are metabolic disorders

Choose the correct option:

1. I and II
2. II and III
3. III and IV
4. I and IV

Q. Variation in the genes of an organism within a species or between the population of same species is called

1. genetic diversity
2. species richness
3. ecological diversity
4. species diversity

Q. Which group of animal has the greatest species diversity?

1. Mammals
2. Reptiles
3. Fishes
4. Insects

Q.

The number of individuals of a species in a particular ecosystem of a given time remains constant due to:

1. Human beings

2. Parasites

3. Predators

4. Food availability

Q. The image below represents many different frogs with different genetic features. What type of biodiversity can it be used to describe?

1. Ecosystem Biodiversity
2. Adaptation Biodiversity
3. Genetic Biodiversity
4. Species Diversity

Q. In the above graph relation between species richness and area for a wide variety of taxa turns out to be a rectangular hyperbola on a logorithmic scale, the relationship shown by straight line. In which area slope of line to be much steeper.

1. Grass land
2. Temperature region
3. Tropical rain forests
4. Tundra

Q. The highest number of species in the world is represented by

1. Algae
2. Lichens
3. Fungi
4. Mosses

Q. India is among $12$ megadiversity countries of world, due its percentage contribution in global species diversity, that is:-

1. $1.8\%$
2. $8.1\%$
3. $2.4\%$
4. $4.2\%$

Q. Indian share in global species diversity is about

1. 2%
2. 4%
3. 6%
4. 8%

Q.

Which one of the following is one of the characteristics of a biological community?

1. Natality

2. Stratification

3. Mortality

4. Sex-ratio

Q. The highest number of species in the world is represented by

1. Algae
2. Lichens
3. Fungi
4. Mosses

Q. Species diversity refers to biodiversity that exists between various species in different ecosystems.

1. True
2. False

Q.

Suppose an animal species ‘X’ not normally found in your area is released where you live. If that animal has no natural enemies there, what might happen?

Q. Species diversity decreases as we move away from the equator towards the poles. What could be the possible reasons?

Q. If the Bengal tiger became extinct,

1. Hyenas and wolves will become scarce
2. The wild areas will be safe for man and domestic animals
3. The gene pool will be lost forever
4. The populations of beautiful animals like deer will get stabilized

Q. Beta diversity is diversity

1. Between communities
2. In mountain gradient
3. In a community
4. On a plain

Q. Species diversity refers to biodiversity that exists between various species in different ecosystems.

1. True
2. False

Q. Explain, giving three reasons, why tropics show greatest levels of species diversity.

Q. Explain giving three reasons, why tropics show greatest levels of species diversity