The convection currents responsible for moving tectonic plates occur in which Earth layer? A. crust
B. asthenosphere
C. outer core
D. inner core
Plz help

Si el equipo no fuera bueno no con el entrenador.

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?