I believe that the best answer for this question is "are." You are referring to two parties here, both the lion tamer and the clowns. This would mean that your applicable verbs must also be plural. Since "are" is the plural version of "is," it is the most suitable word to use in this situation. Hope this helps.
Answer:
The Niagara movement was established in 1905. It was led by civil rights leaders such as W.E.B. Du Bois and William Monroe Trotter. Their mission was to affect political and social change for African Americans. They sought to end institutional injustices and to expand economic and educational opportunities for Black Americans. The group's efforts led to the formation of the National Association for the Advancement of Colored People (NAACP) in 1909. Note that the language of the speech is representative of the time period in which it was delivered. Some words and phrases are no longer appropriate.
b. It allows the reader to recognize the humor in the poem.
2) Boys and squirrel 3) Nuts and ground 4) bird and tree 5) rabbit and house 6) vet and rabbit 7) artist and ducks 8) brother and coach 9) grandmother and vegetables 10) turtle and rock. Hopes this helps you!