Answer:
Birth is an example of a normally occurring positive-feedback mechanism.
Answer:
intrusive igneous rocks cool from magma slowly because they are BURIED beneath the surface extrusive igneous rocks cool from lava rapidly because they form at the surface and the meaning of those words are simple intrusive means inside of something like interior and extrusive means outside which is like exterior
Answer:
Joint - a joint is where two bones articulate
In this case, the femur and tibia form a joint.