How do acacia trees communicate with each other in response to insect attack? A) They produce a gas called ethylene.
B) They release pollen.
C) They produce thorns and spines.
D) They drop their leaves.

Florian discovers a rock that is broken into pieces. each piece has several bands. which type of rock does florian predict these pieces will change into when subjected to heat and pressure? igneous magma metamorphic sedimentary

In what cells is the human genome located?

The carrier molecules of the electron transport system are located in the