Draw a cross section of the mammalian spinal cord, including the dorsal and ventral roots, and draw a muscle to one side on the spinal cord. Draw in a reflex that includes a sensory nerve, an interneuron, and a motor nerve.

What pattern of migration do whales follow?

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.

The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?