What do you understand by biodiversity How can you say variations are present in them?

The biological diversity of flora and fauna present in an ecosystem along with the surrounding environment is known as the biodiversity of a region. Several different species of plants and animals that are widely diverse in their genetic composition is seen to be present in the biodiversity of a region.

What do you understand by biodiversity?

Biodiversity is all the different kinds of life you'll find in one area—the variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural world. Each of these species and organisms work together in ecosystems, like an intricate web, to maintain balance and support life.

What is the variation of biodiversity?

Biological diversity, often shortened to biodiversity, is the variation of life at all levels of biological organization, referring not only to the sum total of life forms across an area, but also to the range of differences between those forms.

What causes variation in biodiversity?

Natural or human-induced factors that directly or indirectly cause a change in biodiversity are referred to as drivers. Direct drivers that explicitly influence ecosystem processes. include land use change, climate change, invasive species, overexploitation, and pollution.

What are the three variants of biodiversity?

Usually three levels of biodiversity are discussed—genetic, species, and ecosystem diversity.

Why is biodiversity so important? - Kim Preshoff

Why is variation important to the survival of a species?

Variations are important for species survival because variation causes the organism to overcome extreme situations. Organism species occupy well-defined positions in the ecosystem, utilizing their reproductive capacity.

What is biodiversity Mcq?

Biodiversity refers to all living organisms that exist on earth and cooperate for sustainable living. Irrespective of size and species, biodiversity includes plants, animals, microorganisms, etc.

Why are there variations in species?

Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Another source is gene flow, or the movement of genes between different groups of organisms.

What is variation of species?

The differences between the individuals in a species is called variation. Variation helps a species to survive, by causing individuals of a species to be genetically and physically different.

What factors affect an area's biodiversity explain how these factors affect biodiversity?

Important direct drivers affecting biodiversity are habitat change, climate change, invasive species, overexploitation, and pollution (CF4, C3, C4. 3, S7).

How are biodiversity and genetic variation connected?

When we drain species of their genetic diversity we destroy their adaptive potential, and their long-term survival will be jeopardised. Biological variation at the DNA-level forms the basis for all biodiversity. Colors represent alleles – variants of separate genes – genetic diversity.

What is biodiversity PDF?

Biodiversity is the variety of different forms of life on earth, including the different plants, animals, micro-organisms, the genes they contain and the ecosystem they form. It refers to genetic variation, ecosystem variation, species variation (number of species) within an area, biome or planet.

What do you mean by biodiversity class 9?

“Biodiversity is the variation among living organisms from different sources including terrestrial, marine and desert ecosystems, and the ecological complexes of which they are a part.”

What do you mean by biodiversity class 10?

Biodiversity is the number and variety of plants, animals and other organisms that are living in an ecosystem. Biodiversity is a measure of the variety of organisms that exist in different ecosystems. Bio means 'life', diversity means 'variety'.

What do you mean by biodiversity class 8?

Biodiversity or Biological diversity: It refers to the variety or organisms existing on the earth. Their interrelationships and their relationship with the environment. It includes variety of plants, animals and microorganisms.

How do variations occur in organisms?

Genetic variations can arise from gene variants (also called mutations) or from a normal process in which genetic material is rearranged as a cell is getting ready to divide (known as genetic recombination). Genetic variations that alter gene activity or protein function can introduce different traits in an organism.

What are variations give examples?

Variation refers to the difference between two individuals of a species. Genetic variation arises due to mutation and recombination during meiosis. Examples of variation are different skin colour, eys, height, resistance to diseases, etc.

How do variations arise in organisms give two reasons Class 10?

Answer. Genetic variation occurs as alleles in gametes are separated and randomly united upon fertilization. The genetic recombination of genes also occurs during crossing over or the swapping of gene segments in homologous chromosomes during meiosis. Variations happen due to inaccuracies in DNA copying.

What is genetic variation class 12?

Complete answer: Genetic variation is defined as the genetic makeup of organisms within a population change. The alleles or the various versions of a particular gene are inherited from parents to off-springs giving them their characteristic features.

What is variation and its importance?

It helps a species to survive,it also helps us to determine who is who,it helps organisms to adapt to their environment as well as to changes which do occur in the environment,however it also helps a species to emerge strong if favoured by natural selection.variation helps a species to be resistant to diseases,thus if ...

How many total biodiversity hotspots are present throughout the world Mcq?

In all, there are 34 biodiversity hotspots present throughout the world.

Which of the following is a biodiversity hotspot in India Mcq?

In India four hotspots are present namely, Himalayas, Western Ghats, Indo-Burman region and Sundaland which consists of Nicobar group of Islands. So, the correct answer is option “C” that is the Western Ghats are considered a hot-spot of biodiversity in India.

How much area of the Earth surface to the biodiversity hotspots cover Mcq?

Biodiversity hotspots make up about 2.3 percent of Earth's land surface, but 44 percent of the world's plants and 35 percent of land vertebrates live in these regions. Most plants in a biodiversity hotspot are endemic, meaning they are not found anywhere else on Earth.

What are variations in biology?

variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).

What do you mean by biodiversity class 11?

Biodiversity itself is a combination of towards, Bio (life) and diversity (variety). In simple terms, biodiversity is the number and variety of organisms found within a specified geographic region. It refers to the varieties of plants, animals and micro-organisms, the genes they contain and the ecosystems they form.