Home
Class 12
BIOLOGY
State true or false statements. Correct ...

State true or false statements. Correct each false statements to make it true.
(i) Within a species, genetic diversity occurs in the differences of alleles, entire genes and chromosomal structures.
(ii) 1000 varieties of rice occur in India due to genetic variation.
(iii) Ecosystem diversity is high in Norway because of the occurrence of a large number of ecosystems.

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Statement (i):** "Within a species, genetic diversity occurs in the differences of alleles, entire genes and chromosomal structures." - **Evaluation:** This statement is **True**. Genetic diversity indeed refers to the variations in alleles, genes, and chromosomal structures within a species. 2. **Statement (ii):** "1000 varieties of rice occur in India due to genetic variation." - **Evaluation:** This statement is **False**. While it is true that there are many varieties of rice in India, the number is significantly higher. - **Correction:** The corrected statement should read: "Over 50,000 varieties of rice occur in India due to genetic variation." 3. **Statement (iii):** "Ecosystem diversity is high in Norway because of the occurrence of a large number of ecosystems." - **Evaluation:** This statement is **False**. Norway does not have a high level of ecosystem diversity compared to other countries, such as India. - **Correction:** The corrected statement should read: "Ecosystem diversity is high in India because of the occurrence of a large number of ecosystems." **Final Summary of Statements:** - (i) True - (ii) False → Corrected to: "Over 50,000 varieties of rice occur in India due to genetic variation." - (iii) False → Corrected to: "Ecosystem diversity is high in India because of the occurrence of a large number of ecosystems." ---
Promotional Banner

Topper's Solved these Questions

  • BIODIVERSITY AND CONSERVATION

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|20 Videos

  • BIODIVERSITY AND CONSERVATION

    AAKASH INSTITUTE ENGLISH|Exercise SECTION - A (Objective Type Questions)|35 Videos

  • BIODIVERSITY AND CONSERVATION

    AAKASH INSTITUTE ENGLISH|Exercise SECTION - D (Assertion-Reason Type Questions)|10 Videos

  • ANIMAL KINGDOM (GENERAL ACCOUNTS & NON-CHORDATES)

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-D)|10 Videos

  • BIOLOGICAL CLASSIFICATION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-D) Assertion - Reason Type Questions|15 Videos

Similar Questions

Explore conceptually related problems

Identify true or false statements. Correct each false statement to make it true. (i) Number of species in a community really matter to the functioning of the ecosystem. (ii) David Tilman proved that decreased diversity contributed to higher productivity. (iii) Rich biodiversity is not essential for ecosystem health but required for survival of human race of earth. (iv) Species which are dangerously harmful beings and their interests can be thought of deliberate extinction.

State true or false and correct each flase statement to make it true (i) The ploidy level of female gametophyte is diploid in flowering plants (ii) Integumented megasporangum is also called as ovary (iii) The embryo sac lies at chalazal end of ovule

State true/false in the following statements. Correct each false statements to make it true. (i) The in-situ conservation strategies emphasise protection of whole ecosystem, therfore its biodiversity at all levels is protected. (ii) Biodiversity hotspots put together cover 2.4% of the earth's land area. (iii) In india, ecologically unique and biodiversity rich regions are legally protected as sanctuaries, national parks and biosphere reserves. (iv) In Uttar Pradesh, the sacred groves are the last refuges for a large number of rare and threatened plants.

Indicate whether the following statements are true or false. Correct each faqlse statement to make it true. (i) Mass extinction is the extermination of a large number of species due to catastrophers. (ii) IUCN Red list (2004) documents the extinction of 359 animal species. (iii) Quagga from Africa and Stellers sea cow from America have been extinct in last few years. (iv) Anthropogenic extinction is 10-100 times more faster than the rate of natural extinctions.

Indicate whether the following statement are true or false. Rectify each false statement to make it true. (i) One of the alternate sources of protein for animal and human nutrition is single cell protein. (ii) It has been calculated that a 250 g cow produces 200 g of protein per day. (iii) Techniques of tissue culture and somatic hybridization offer cast potential for manipulation of plants in-vivo to produce new varieties.

Identify true or false in the following statements : (i) Team biodiversity was popularised by Edward Wilson to describe the combined hetrogeneity at all levels of biological organisation. (ii) More than 5000 genetically different varieties of mango occur in India. (iii) Western Ghats have greater amphibian species diversity as compared to Eastern Ghats. We could lose all wealth of biodiversity in less than two decades if the present rates of species losses continue.

Choose CORRECT statements from the following. (P) The western Ghats have greater amphibian species diversity than the Eastern Ghats (Q) Diversity exist at all levels of biological organization ranging from macromolecules within cells to biomes. (R) Rauwolfia vomitoria show the genetic variation in terms of potency and concentration of the reserpine produced. (S) Norway has a greater ecosystem diversity than India .

Assertion : Broadly utilitarian arguments say that we should conserve biodiversity because biodiversity plays a major role in many ecosystem services that nature provides. Reason : Expolration of molecular, genetic and species level diversity to obtain the products of economic importance is include under broadly utilitarian category. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

Consider the following statements and select the correct option stating which ones are true (T) and which ones are false (F). (i) Pyramid of biomass is upright in the forest ecosystem and inverted in the grassland ecosystem. (ii) Pyramid of numbers is inverted in grassland and upright in aquatic ecosystem. (iii)Pyramid of energy depicts the rate of energy flow or productivity at successive trophic levels . (iv) Ecological pyramids have no place for detritivores and decomposers though they play an important role in an ecosystem.

Read the following statement A) 6th mass extinction species is being caused anthropogenically and is 10 time faster than the rate of natural extinctions. B) passenger pigeon have become extinct due to over Exploitations of humans. C) Norway has lower ecosystem diversity than India. D) more than 50000 varieties of mango occur in India. choose the option with correct sets of statement