Home
Class 11
BIOLOGY
Linnaeus is considered as Father of Taxo...

Linnaeus is considered as Father of Taxonomy. Name two other botanists known for their contribution to the field of plant taxonomy. 

Text Solution

Verified by Experts

R. H. Whittaker assigned five kingdom classification. Bentham and Hooker classified Angiosperms further.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • THE LIVING WORLD

    KUMAR PRAKASHAN|Exercise SECTION - E (SOLUTION OF NCERT EXEMPLAR)(SHORT ANSWER TYPE QUESTIONS : )|10 Videos

  • THE LIVING WORLD

    KUMAR PRAKASHAN|Exercise SECTION - E (SOLUTION OF NCERT EXEMPLAR)(LONG ANSWER TYPE QUESTIONS : )|10 Videos

  • THE LIVING WORLD

    KUMAR PRAKASHAN|Exercise SECTION - E (SOLUTION OF NCERT EXEMPLAR)(MULTIPLE CHOICE QUESTIONS : (MCQs))|10 Videos

  • STRUCTURAL ORGANISATION IN ANIMALS

    KUMAR PRAKASHAN|Exercise QUESTIONS FROM MODULE(QUESTION PAPER )|11 Videos

  • TRANSPORT IN PLANTS

    KUMAR PRAKASHAN|Exercise Questions from Module (Question Paper )|9 Videos

Similar Questions

Explore conceptually related problems

To find out the names of organisations involved in spreading awareness about the conservation of natural resources. NGO (Non Government Organisations) such us SEACOLOGY and Mera Desh Foundation spread awareness about the environment and promote activities that lead to conservation of natural resources. Some other organisations that work for the conservation of the environment. CSE - The Centre for Science and Environment, TER- The Energy and Resources Institute, WTI - Wildlife Trust of India. How you can contribute towards the conservation of our environment and natural resources.

A straight wire carrying a current of 12 A is bent into a semi-circular arc of radius 2.0 cm as shown in Fig. (a). Consider the magnetic field B at the centre of the arc. (a) What is the magnetic field due to the straight segments? (b) In what way the contribution to B from the semicircle differs from that of a circular loop and in what way does it resemble? (c) Would your answer be different if the wire were bent into a semi-circular arc of the same radius but in the opposite way as shown in Fig. (b)?

Improvement in our lifestyle have resulted in generation of greater amount of waste material. We use more and more disposable things due to our changed lifestyle and wrong attitude. Name the two factors that have contributed to the deterioration of our environment.

Give name of scientists contributing towards classification and classification of plants.

Amazon rain forest are considered as lungs of the plant because they contribute_________of the total oxygen in the earth's atmosphere :-

A straight wire carrying a current of 12 A is bent into a semicircular arc of radius 2.0 cm as shown in figure (a). Consider the magnetic field vecB at the centre of the arc. (a) What is the magnetic field due to the straight segments ? (b) In what way the contribution to vecB from the semicircle differs from that of a circular loop and in what way does it resemble ? ( c) Would your answer be different if the wire were bent into a semicircular arc of the same radius but in the opposite way as shown in figure (b) ?

Two identical coils having same number of turns and carrying equal current have common centre and their planes are at right angles to each other. What is the ratio of magnitude of the resultant magnetic field at the centre and magnetic field due to one of the coils at the centre ?

Two small and similar bar magnets have magnetic dipole moment of 1.0 Am^(2) each. They are kept in a plane in such a way that their axes are perpendicular to each other. A line drawn through the axis of one magnet passes through the centre of other magnet. If the distance between their centers is 2 m, find the magnetic field at the mid point of the line joining their centers.

Consider a sphere of radius R with charge density distributed as : rho( r) =kr, r le R =0 for r gt R (a) Find the electric field at all points r. (b) Suppose the total charge on the sphere is 2e where e is the electron charge. Where can two protons be embedded such that the force on each of them is zero. Assume that the introduction of the proton does not alter the negative charge distribution.

Consider the decay of a free neutron at rest : n to p +e^(-) Show that the two body decay of this type must necessary give an electron of fixed energy and therefore cannot account distribution in the beta - decay of a neutron or a nucleous as shown in figure . [ Note : The simple result of this exercise was one among the several arguments advanced by W . Pauli to perdict the existence of a third particle in the decay products of beta - decay . This particle is known as neutrino spin 1/2 ( like e^(-) p or n ) but is neutral ad either massless or having an extremely small mass (compared to the mass of electron) and which interacts very weakly with matter . The correct decay process of neutron is : n to p+e(-)+v)

Home
Profile