_ are the spiral-shaped masses formed when fibers that compose the axon become twisted together in the brain.

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

In the sentence "a mining company will consider the distribution of coal when deciding how to mine the coal," what does the word distribution mean?

The pelican's beak is adapted for in .