Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
Match Column-I with Column-II Column-I (a) Chlamydomonas (b) Cycas (c) Selaginella (d) Sphagnum Column-II (i) Moss (ii) Pteridophyte (iii) Algae (iv) Gymnosperm
The total number of $\pi$-bond electrons in the following structure is:
Which of the following diseases is/are not completely curable?
The graph which shows the variation of the de Broglie wavelength ($\lambda$) of a particle and its associated momentum ($p$) is
In half wave rectification, if the input frequency is $60\text{ Hz}$, then the output frequency would be
In general, the egg apparatus of the embryo sac in angiosperms consists of:
Pollen grains can be stored for several years in liquid nitrogen having a temperature of:
Functional megaspore in an angiosperm develops into:
If a body having initial velocity zero is moving with uniform acceleration $8 \text{ m/sec}^2$, then the distance travelled by it in the fifth second will be:
Winged pollen grains are present in:
Anemophilly type of pollination is found in:
What type of pollination takes place in Vallisneria?
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:
Which of the following has proved helpful in preserving pollens as fossils?
A person sitting on the ground floor of a building notices through the window, of height $1.5 \text{ m}$, a ball dropped from the roof of the building crosses the window in $0.1 \text{ s}$. What is the velocity of the ball when it is at the topmost point of the window? ($g=10 \text{ m/s}^2$)
The residual persistent part which forms the perisperm in the seeds of beet is :
What is common between vegetative reproduction and Apomixis?
The coconut water and the edible part of coconut are equivalent to:
Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:
In a standard ECG, which one of the following alphabets is the correct representation of the respective activity of the human heart?