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A thigmotropic or thigmoresponsive movement in plants is a response to touch or contact stimuli. Tendrils curling around a support are a good example.
According to Mendeleev’s Periodic law, the elements were arranged in the periodic table in the order of…………...?
Nitric oxide pollution can lead to all of the following, except
What is the primary cause of tides on Earth?
The phenomenon due to which the sky appears blue is
A man inside an artificial satellite feels weightlessness because the force of attraction due to earth is –
Which of the following hormones requires a cell surface receptor for its action?
One can distinguish a telescope from a microscope by observing –
Which of the following acids is present in an ant’s string?
What is the reason for twinkling of stars?
The frequency range of human hearing is approximately: