The oldest rocks are on the bottom and the rocks become progressively younger toward the top. explain why this is the case?

How come we can see water but never air

A student states that the trp gene is located at 26 minutes. what does this mean?

What is the ozone? is it possible to restore the depletion that has occurred over time? if so how?

How is protein synthesis different in prokaryotes and eukaryotes?

The graph shows the populations of two species in a particular region over two decades. Based on the graph, what can you conclude about the relationship between the two species?

Which area is studied by biologists

What molecule, produced in cellular respiration, is used to open and close ion channels? A. ADP B. high energy electrons C. adenosine triphosphate

What is true of saturated fatty acid chains? They are more healthy that unsaturated fats. They contain only single covalent bonds. They are only made in leaf cells of green plants. They contain at least one double or triple bond.

Biology question 32. do you think human height is affected only by genetics? Explain your answer

Which statement best compares coral reef ecosystems to demersal ecosystems? Coral reef ecosystems have high levels of nutrients in the water, and demersal ecosystems do not.