How many american soldiers died during the vietnam war?

What are that three unifying characteristics of chordates

The development of humans was directly dependent ondevelopment of a language.development of communication between people.e development of tools.litdevelopment of the wheel.

What major crop did the portuguese produce using slaves from africa? a. tea c. coffee b. bananas d. sugarcane select the best answer from the choices provided 0 a ooo cc cc