List the three main differences between rna and dna

Which of these glands is NOT an exocrine gland?

Molecules that contain c & h

Water changes forms frequently during the water cycle. Which is the formation of clouds? A.) precipitation falling from the atmosphere B.) condensation occurring in the atmosphere C.) runoff traveling downhill D.) sunlight causing evaporation

Which of the following statements is true? Groundwater is the largest available source of freshwater. Most of Earth's water is found in lakes, rivers, and streams. Glaciers are made from frozen ocean water, so they are sources of saltwater.

Applicable beyond the time range of radiocarbon dating, amino-acid racemization is used primarily to date samples of

When the two solutions are mixed, a clear solution with white powder at the bottom results., What has caused this change?

What receptor type is exemplified opening a channel to get sodium into the cell

What is the total amount of tissue of all organisms in a food chain called?

If an entire stack of rock layers has been folded, which of these would have occurred most recently?

Which kingdom of organisms is usually multi-celled, heterotrophic, and has cell walls made of chitin, divided by openings called septa?