Why do you think variation of species is important in maintaining the natural biodiversity of organisms?

Variation within species affects how organisms interact with each other and their surrounding environment. For example, the size of a fish’s mouth, known as its gape, determines the size of prey it can eat. And the variety of noxious chemicals a plant produces controls which insects chew its leaves.

Why is variation between species important?

Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. … Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population.

How does variation in ecosystems contribute to biodiversity?

Biodiversity is increased by genetic change and evolutionary processes and reduced by habitat destruction, population decline and extinction. … Species Diversity is simply the number and relative abundance of species found in a given biological organisation (population, ecosystem, Earth).

What is variation in 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.

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What does variation of a species mean?

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).

How are species related to the concept of biodiversity?

How are species related to the concept of biodiversity? Biodiversity is the variety and number of species in a given area. … Species are designed to survive and adapt to certain areas in which they live.

How is species diversity represented in nature?

Species diversity is defined as the number of species and abundance of each species that live in a particular location. … If you were to measure the species richness of a forest, you might find 20 bird species, 50 plant species, and 10 mammal species. Abundance is the number of individuals of each species.

How is species diversity different from genetic diversity?

Genetic diversity is all the different genes contained in all individual plants, animals, fungi, and microorganisms. It occurs within a species as well as between species. Species diversity is all the differences within and between populations of species, as well as between different species.

Is there more variation within a species or among species?

The variation among different populations of the same species is generally not significantly less than the differences observed among species (like in the situation depicted right of Figure 1).

What is the importance of variation in plant and animal breeding?

Genetic variation is necessary in order to make progress in breeding successive generations. Each gene, which is the basic unit of heredity, occupies a specific location, or locus, on a chromosome. Two or more genes may be associated with a specific locus and therefore with a specific trait.

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Why is variability necessary and where does it come from?

Why is variability necessary and where does it come from? Variability is essential for natural selection to work. If all individuals are the same on a given trait, there will be no relative difference in their reproductive success because everyone will be equally adapted to their environments on that trait.

What are variations how do they help organisms?

Answer : Variation can be defined as the differences among individuals within a same species which develops due to the mixing and assortment of genes of the parents that is passed onto the offspring’s. This helps in the individualism of any organism from the other organisms of same species or within a community.