Answer:
b, 8-10
Explanation:
your body needs 20 amino acids to grow, repair and function, however, only nine amino acids are 'essential' as such. 
they are histidine, valine, isoleucine, methionine, phenylalanine, threonine, tryptophan, leucine, and lysine
hope this helps! :)
 
        
                    
             
        
        
        
I believe that in this community the tadpoles are: the primary consumers. A n ecological community is the set of all populations of all species found in a given place. Primary consumers are mainly herbivores which feed on plants; which are the primary producers of all the energy in an ecosystem. In this case the tadpoles eat algae (primary producer) thus they are primary consumer. 
        
             
        
        
        
Answer:
plant cells only
Explanation:
animal cells have no cell wall.
 
        
             
        
        
        
The study of plants is called botany. There are different types of plants in the living being and these are algae, bryophytes, pteridophytes, gymnosperm, and angiosperm.
The correct answer is mentioned as follows:-
<h3>GYMNOSPERM</h3>
- The less developed plant which does not bear flowers and has covered less seed is called gymnosperm.
 
According to the question, the diagram is not mentioned in the question hence we can not able to tell the characteristics of the area marked as X. The plants do not look like palm trees.
Hence, provide it with the diagram for better assessment.
For more information about the Gymnosperm, refer to the link:-
brainly.com/question/12985618