Home
Class 12
BIOLOGY
With respect to Eichhornia Statement ...

With respect to Eichhornia
Statement A: It drains off oxygen from water and is seen growing in standing water.
Statement B: It is an indigenous species of our country.

A

(a) Statement A is correct and Statement B is wrong.

B

(b) Both Statements A and B are correct.

C

(c) Statement A is correct and Statement B is wrong.

D

(d) Both statements A and B are wrong.

Text Solution

Verified by Experts

The correct Answer is:
A
Statement A is correct and Statement B is wrong.
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL ISSUES

    FULL MARKS|Exercise ADDITIONAL QUESTIONS (1 MARKS QUESTIONS)|32 Videos

  • ENVIRONMENTAL ISSUES

    FULL MARKS|Exercise ADDITIONAL QUESTIONS (2 MARKS QUESTIONS)|29 Videos

  • ECOSYSTEM

    FULL MARKS|Exercise Higher Order Thinking Skills (HOTs) Questions|5 Videos

  • EVOLUTION

    FULL MARKS|Exercise ADDITIONAL QUESTIONS (5 MARK QUESTIONS)|7 Videos

Similar Questions

Explore conceptually related problems

With respect to endemic species Statement A: They are widely distributed in many geographical regions. Statement B: They are threatened due to low disperal rate.

Select the suitable answer with respect to Subunit recombinant vaccines from the statements given below. Statement A : The components of a pathogenic organism is used rather than the whole organism. Statement B : The components are proteins, peptides and DNA

Read the given statement and select the correct option. Statement 1: Tropical rainforests are disappearing fastly from developing countries such as India. Statement 2 : No value is attached to these forests because these are poor in biodiversity. (a) Both statement 1 and 2 are correct (b) Statement 1 is correct but statement 2 is incorrect (c) Statement 1 is incorrect but statement 2 is correct (d) Both statement 1 and 2 are incorrect.

Select the suitable answer with respect to gene therapy from the statements given below: Statement A: ADA deficiency or SCID (Severe Combined Immunodeficiency) is an autosomal dominant metabolic disorder. Statement B : It can be cured permanently if ADA gene is introduced into the cells of early embryonic stages.

A man is sitting in a boat which is floating in a pond. If the man drinks some water from the pond, the level of water in the pond decreases. Justify whether the given statement is True (or) False.

Read the following statements and select the correct option. Statement 1 : BOD represents the amount of dissolved oxygen that would be consumed if all the organic matter in one litre of water were oxidised by microorganisms. Statement 2 : High value of BOD indicates that water is highly polluted by organic matter.

Statement-1: Hydrogen can be used as a clean burning fuel. Statement-II: Hydrogen on combustion give only water as end product and it is free from pollutants.

Read the given statements and select the correct option. (i) Hydrophytes possess aerenchyma to support themselves in water. (ii) Seeds of Viscum are positively photoblastic as they germinate only in presence of light. (iii) Hygroscopic water is the only soil water available to roots of plant growing in soil as it is present inside the micropores. (iv) High temperature reduces use of water and solute absorption by roots.

A pendulum having a bob of mas m is hanging in a ship sailing along the equator from east to west. When the ship is stationary with respect to water the tension in the string is T_0 . a. Find the speed of the ship due to rotation of the earth about its axis. b. find the difference between T_0 and the earth's attraction on the bob. c. If the ship sails at speed v, what is the tension in the string ? Angular speed of earth's rotation is omega and radius of the earth is R.