Which of the following statements is true? mountains form when two continental plates move away from each other. new oceanic crust is formed by magma filling spaces at mid-ocean ridges. a loess is an area of nutrient-poor soil caused by erosion. "hot spots" are locations where the earth's crust is very thick.

there is no

explanation:

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands