The ecological succession in the diagram took place over hundreds, possibly thousands of years. During this time, heavy rain fell frequently, rushing water over the land. Which organism played the biggest role in keeping fertile soil from washing away during the early years of succession? A grasses
B mosses and lichens
C softwood trees
D hardwood trees

16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.

What is true about all plutons? they form below earth’s surface. they form near earth’s surface. they form above earth’s surface. they cut across other rock layers.

What is the difference between hypothesis, theories, laws, and observations?