The answer is the latent period.
The latent period is the period elapsing between the application of a stimulus and the obvious response, such as the contraction of a muscle. The contraction period, or contraction time, is the time it takes the muscle to reach its peak contraction after the latent period. The relaxation period is the time the muscle takes to return to resting tension after reaching its peak contraction.
Answer:
The correct option is <em><u>A. Over time, due to evolution by means of natural selection, resistant weeds survived, reproduced, and passed on their herbicide resistant genes. </u></em>
Explanation:
Herbicides can be described as substances which are used to kill unwanted plants such as the weeds. Nowadays, selective herbicides are produces which are effective in killing the weed species and do not harm the crop plants.
But over time, the weeds get resistant to the herbicide. As the theory of natural selection says, 'survival of the fittest', the herbicide which are resistant are better adapted to live hence, they pass their genes to the offsprings. This results in the production of more herbicide resistant weeds.
Answer:
B. small disturbance (a p e x)
