Immediately following the arrival of the stimulus at a skeletal muscle cell, there is a short period called the latent period during which the events of excitation-contraction coupling occur.
This process is a connection between transduction in the sarcolemma and the initiation of muscle contraction. Sarcolemma is nothing but the cell membrane of skeletal muscle.
A single muscle twitch has a latent period, a contraction phase when tension increases and a relaxation phase when tension decreases.
The period of incubation, the interval preceding exposure to a pathogen toxin or radiation, and when effects occur. Muscle contracting, the time between a nerve stimulus and muscle contraction.
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Answer:
Water droplets acts as tiny prism in the sky. The sunlight when enters these tiny droplets undergo internal reflection and also refract these rays which are dispersed causing a band of seven colors called rainbow.
Explanation:
Impermeable is a substance that is water proofed e.g glass, aluminium e.t.c <span />
Answer:
a) False.
b) True.
c) Flase.
Explanation:
a) An experiment proposes a possible explanation for a natural phenomenon.
False: An experiment doesn't propose possible explanation for a natural phenomenon. Actually, an experiment is designed to test already proposed explanations which normally are first developed in a more <em>theorical </em>context.
b) A experiment must be stated in a way that it can be tested by experiments.
True.
b) An experiment is a theory that has been validated many times by many scientists.
Flase: An experiment is no a theory, but a tool to test theories.