Decrease in marine animal population Impact of Human Activities Human Activity Impact Replacing marsh with high-rise buildings Decrease in bird population
I think this might be correct
The correct answer is letter B
Explanation: This technique is very common and consists of selecting a population sample that is accessible. That is, the individuals employed in this research are selected because they are readily available, not because they were selected using a statistical criterion.
I dont know but there is anouther website called easy answers you can try hope you find it out.
Place theory – high frequency sounds
Frequency theory – low frequency sounds
Volley principle – mid-range sounds
These are the theories of hearing that explains the
perpetual processing of sound sensation. The place theory maybe the opposite of
frequency theory but the volley principle states that neural cells can
alternate firing which makes it in the mid-range.
