Answer:
12
Explanation:
atomic no is also the same as proton no.the no of protons are equal to the no of electrons
 
        
             
        
        
        
<u>answer:</u> natural selection
 
        
             
        
        
        
Answer:A) Aquarist- Tony spends his time at work preparing feed and cleaning the tanks of the marine creatures on display. B) Marine educationist-Clayton works in a firm advising oil exploration companies about the impact of their activities. 
 C) Environmental consultant-Glenda runs a campaign to stop sand mining in the estuary that lies near her town. 
 D) Environmental lobbyist-Hazel works in a tour operating company interacting with and answering questions from tourists about the coral reefs in the Florida Keys.
Explanation:
 
        
             
        
        
        
Fine sediment deposited by wind is B) loess
Hope this was helpful
        
             
        
        
        
Question 1 ) muscle cell maintains homeostasis is not an example of the <span>intracellular communication.
Question 2 ) </span>intracellular receptor goes into action <span>When non-nerve cells become involved in response to signals.</span>