Which city is bigger madrid or oxford

What groups of species are alive, eukaryotes, symmetrical, have backbones, and are tetrapods? (didn't mean to put spanish)

When traveling in the spanish-speaking countries, it's very important to be able to understand directions in spanish, so that you can find out how to get from place to place. but what happens if you need to give a friend directions? would you be prepared? in this project you'll practice giving directions to places in panama city.

Which word correctly completes this question? ¿ características tiene el teléfono celular? a. quién b. qué c. cómo d. por qué