The answer is b because water has a PH of 1 and lemon juice is very acidic
Competition is an interaction between organisms or species in which both the organisms or species are harmed. Limited supply of at least one resource (such as food, water, and territory) used by both can be a factor.
It takes the muscle time to act once it receives a response from the nerves. It also takes time for the electric impulse to pass between gaps in the nerves (synapses).<span />
Vibration are waves caused by back and fourth movement or vibration of an object