Answer:
.
Step-by-step explanation:
11 is visitor. (noun) (its not proper bc its not telling specificly WHO it is)
12 woould be gary johnson as the proper noun. he is a SPECIFIC scientist.
13. animals would be the noun, because its talking about animals in general and not spcifacly a zebra or something.
14. producers would be the proper noun bc its saying that the animals were the ones that were producers.
15. food would be the proper noun i think. this is because its saying what the producers are producing.
16 african lion would be the proper noun bc it is the specific animal that is a consumer.
17.noun is food. or proper noun s consumer
18. proper noun is mr johnson he is specific person.
19. decomposer is a noun in the sentance because we dont have a specific place holder for who or what the decomposer is
20. scavenger is proper noun because it is reffering specifically to composers. i may be wrong but i tried :)