The awnser is the last one
        
             
        
        
        
Receptor proteins, they then send out the signal to perform a task or duty
        
             
        
        
        
In cellular respiration, the cells take the carbohydrates in and through complex metabolic processes, they break them down and release the energy. 
        
             
        
        
        
<h2>MCQ:- </h2>
<h3>ANSWER:-</h3>
-  Tissue
- Unicellular Prokaryote 
- Must be correct
- Not include in any kingdom
<h2>Explanation:- </h2>
(1) Group of cell that work together as one to perform a single function is termed as Tissue . Then the group of tissue combine to form organs and further they combine to organ systems and further they combine to form organ system . 
(2) They are unicellular green algae which belongs to family Volvocaceae of the Plantae Kingdom
(3) Hypothesis is the assumption which are taken on the behalf of the observation on small <u>scale</u> . They can be correct or incorrect depends on the number of observation and Hypothesis. 
(4) Viruses are included in any of the kingdom because they are on the intermediate line of living and non living as they show properties of non living outside the host and properties of living inside the host