Environmental Studies · Geography

Natural Vegetation and Habitats

1,703 Questions

Study the characteristics of various biomes, including tropical rainforests, savannas, and thorn forests. Questions address ecological concepts like stratification, climate factors, and regional vegetation types such as littoral forests. This topic is commonly asked in geography and environmental science papers.

Forest biomes and typesSavanna and grassland habitatsTropical rainforest characteristicsEcological stratificationThreats to natural habitats

Natural Vegetation and Habitats Questions

Multiple choice botany plants in daily life types of wood importance of plants secondary growth in stem

Diffuse porous woods are characteristic of plants growing in ________________.

  1. Alpine region

  2. Cold winter regions

  3. Temperate climate

  4. Tropical
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In most of the gymnosperms such as conifers and cycads. Vessels are not present and the wood is made entirely of tracheids. These woods are known as nonporous. In angiosperms, the wood consists of both tracheids and vessels. The wide vessels are appearing with pores between. Such wood is called porous. 

In these porous woods, if vessels have essentially equal diameters the wood is known as diffuse-porous. It is the characteristic of plants growing in tropical regions.

So, the correct option is D.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Among the ecosystem mentioned below where can one maximum biodiversity? 

  1. Mangroves

  2. Desert

  3. Coral reefs

  4. Alpine Meadows
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Ecosystem diversity deals with the variations in ecosystems within a geographical location and its overall impact on human existence and the environment. Ecosystem diversity is a type of biodiversity. It is the variation in the ecosystems found in a region or the variation in ecosystems over the whole planet. Biodiversity is important because it clears out our water, changes out climate, and provides us with food. Ecological diversity includes the variation in both terrestrial and aquatic ecosystems. Ecological diversity can also take into account the variation in the complexity of a biological community, including the number of different niches, the number of trophic levels and other ecological processes. A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. Often called "rainforests of the sea", shallow coral reefs form some of Earth's most diverse ecosystems. They occupy less than 0.1% of the world's ocean area, about half the area of France, yet they provide a home for at least 25% of all marine species, including fish, mollusks, worms, crustaceans, echinoderms, sponges, tunicates and other cnidarians.
So the correct option is 'coral reefs'.
Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Select correct statement about biodiversity.

  1. Desert areas of Rajasthan and Gujarat have a very high level of desert animal species as well as rare animals

  2. Western Ghats have a very high degree of species richness and endemism

  3. Conservation of biodiversity is a fad pursued by developed countries

  4. Large scale planting of Bt cotton has no adverse effect on biodiversity
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A mountain range that runs parallel to the western coast of the Indian peninsula is known as the Western Ghats. The area has over 7,402 species of flowering plants, 1,814 species of non-flowering plants, 139 mammal species, 508 bird species, 179 amphibian species, 6,000 insects species, and 290 freshwater fish species. Many undiscovered species also exist. Around 325 globally threatened species also occur here. And this makes clear that the Western Ghats are the most biodiversity-rich zone in India. It is also known as 'Cradle of speciation'.

So, the correct answer is 'Western Ghats have a very high degree of species richness and endemism'.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Biodiversity-rich areas are the 

  1. Hotspots

  2. Plants

  3. Animals

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
A biodiversity hotspot is a region of the earth that is extremely biologically diverse. The forest serves as the reservoir of biodiversity containing different species of plants, animals and all other sorts of living organisms. Many forests include a very rich diversity of species including most rare and prior to extinct species. Thus, the correct answer is option A.
Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

The variety of forms of life found in a region is called as

  1. Biodiversity

  2. Flora

  3. Fauna

  4. Endemic
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biodiversity is the variability among living organisms from all sources, including terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species, and of ecosystems. Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play.

So, the correct answer is 'Biodiversity'.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Diversity of habitats over the total geographical area is

  1. Alpha diversity

  2. Beta diversity

  3. Gamma diversity

  4. Delta diversity

  5. Omega diversity
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A) The diversity of organisms sharing the same habitat is known as alpha diversity.

B) The rate of replacement of species along a gradient of habitats is known as beta diversity. 
C) The diversity of habitats over the total landscape or geographical area is known as gamma diversity.
D) Delta diversity includes the differentiation of diversity over wide geographic areas.
So, the correct answer is 'Gamma diversity'.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Maximum biodiversity is found in

  1. Tropical rain forests

  2. Temperate rain forests

  3. Mangrove vegetation

  4. Tundra
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Maximum biodiversity is found in Tropical rain forests. One of the reasons is that tropical environments, unlike temperate ones, are less seasonal, relatively more constant and predictable. Such constant environments promote niche specialization and lead to greater species diversity. Examples:-
A) A forest in a tropical region like Equador has up to 10 times as many species of vascular plants as a forest of equal area in a temperate region like the Midwest of the USA. 
B) The largely tropical Amazonian rain forest in South America has the greatest biodiversity on earth- it is home to more than 40,000 species of plants, 3,000 of fishes, 1,300 of birds, 427 of mammals, 427 of amphibians, 378 of reptiles and of more than 1,25,000 invertebrates.
So, the correct answer is 'Tropical rain forests'.
Multiple choice botany living world mycorrhiza classification of fungi kingdom monera, protista and fungi useful and harmful microbes

Ectomycorrhiza is found in

  1. Several trees and shrubs of tropical areas

  2. Many vascular plants of tropical area

  3. Several trees and shrubs of temperate areas

  4. Small vascular plants
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ectomycorrhiza is a type of symbiotic association typically found in woody plants, such as trees and shrubs, in temperate forest ecosystems.

Multiple choice evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

The first plants to reappear in a badly burned forest area will most probably be

  1. Liverworts

  2. Ferns

  3. Grasses

  4. Mosses
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The ferns have two stages in their life cycle spore-bearing stage and sexually reproducing stage. Spore has a thick spore wall and is resistant to high temperatures and other environmental changes. The first plants to reappear in a badly burned forest area will most probably be ferns because its spores are resistant to fire.
So, the correct answer is 'Ferns'
Multiple choice botany transpiration guttation excretion in plants long distance transport of water

Guttation occurs only in

  1. Hydrophytes

  2. Mesophytes

  3. Mangroves

  4. Marshy plants
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Guttation is the process in which plant pores secrete droplets of water.

Guttation occurs in moist conditions.
This commonly occurs in mesophytes at night when transpiration
Is not taking place due to closed stomata.
The extra water content is hence removed by this process and it can be seen on the surface of leaves as water oozes out of the hydathodes 
So the correct answer is 'Mesophytes'.

Multiple choice zoology biodiversity and conservation hotspots and methods of conservation biodiversity: conservation conservation of biodiversity basis of classification in animals basis of the classification of animals criteria for animal classification five kingdoms of living organisms biodiversity and need of classification biodiversity and classification

Western ghats have a greater number of amphibian species than the Eastern ghats. What kind of diversity does it represent?

  1. Species diversity

  2. Genetic diversity

  3. Ecological diversity

  4. None of these.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Species diversity is the variety in the number and richness of the species of a region, Western Ghats have greater amphibian species diversity as compared to eastern ghats.

Multiple choice zoology biodiversity and conservation hotspots and methods of conservation biodiversity: conservation conservation of biodiversity basis of classification in animals basis of the classification of animals criteria for animal classification five kingdoms of living organisms biodiversity and need of classification biodiversity and classification

If at high altitudes, birds become rare, the plants likely to disappear are

  1. Pine

  2. Orchids

  3. Oak

  4. Rhododendrons
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pines seeds are mainly small and winged, and are anemophilous generally, which means that the seeds are dispersed by wind. However, some seeds are larger and they have only a vestigial wing and are needed to be dispersed by a bird. Thus, If at high altitudes, birds become rare, the plants likely to disappear are Pine plants. Oaks are not generally found at such high altitudes.

So, the correct answer is 'Pine'.

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

The vegetation of Rajasthan is

  1. Arctic

  2. Alpine

  3. Deciduous

  4. Xerophytic
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Xerophytes are plants of dry habitats, where the environment favours higher rate of transpiration than the rate of absorption. 

In India various parts of Rajasthan and Gujarat show xerophytic plants. Jaisalmer district and surrounding areas of Rajasthan are true deserts.