(05.02A MC)Each of the following answer choices compares a segment of DNA from two related species that diverged from a common ancestor. Assume a mutation rate of one mutation every 60 million years applies to all segments and that a mutation can happen only once at each position in a DNA sequence. Which pair of sequences shows that the two species diverged from their last common ancestor 60 million years ago?
Read DetailsLISTENING COMPREHENSION (4 pts) Connecting Talents (Vocabulary: Professions) Diego is listening to the podcast Conectando talentos. Students are calling in to describe their interests and are getting advice from a career counselor. Listen to the students’ comments and select the correct option to complete each statement.
Read DetailsLISTENING COMPREHENSION (4 pts) Connecting Talents (Vocabulary: Professions) Diego is listening to the podcast Conectando talentos. Students are calling in to describe their interests and are getting advice from a career counselor. Listen to the students’ comments and select the correct option to complete each statement.
Read DetailsARTURO: Este domingo tengo que limpiar la casa. ANA: ¡Oh no! Mis compañeras y yo [q21] limpiamos ayer. ARTURO: Nosotros ayer tuvimos una cena con amigos y hoy tengo que lavar los platos. ANA: ¿[q22] vas a lavar ahora? ARTURO: Sí, y después tengo que limpiar mi dormitorio. ¿Tú también [q23] limpiaste ayer? ANA: No. Por la noche mis amigas y yo miramos dos películas en Netflix. ¡[q24] recomiendo porque son muy divertidas!
Read Details