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________ occurs when one living organism feeds on another.

Which of the following are NOT cnidaria?

Amphibians were the dominant animal life during the ________ period.

Which of the following conducting cells are associated with xylem?

A(n) ________ consists of all the populations of multiple species interacting in a designated region.

Choose the correct Direct Object Pronoun in the context below:¿gente?

Choose the correct Direct Object Pronoun in the context below:¿cafés?

Choose the correct verb conjugated form of the Irregular Preterite in the following sentence:¿Le diste a Juan Pablo su dinero?.Sí, se lo _________ (dar: yo).

Choose the correct verb conjugated form of the Regular Preterite in the following sentence:Esta mañana _________ (correr: yo) por el parque de la ciudad.

Choose the correct verb conjugated form of the Regular Preterite in the following sentence:Ellos _________ (bailar: ellos) toda la noche sin parar.