Which conclusion about the sand on a beach below a sea cliff is most justified?

the sand will be deposited on the wall of the sea cliff.

the sand was carried from a faraway, inland location.

some of the sand originated from the sea-cliff rock itself.

most of the sand on the beach will be carried inland by wind

What does it mean for an allele to be dominant?

Read this summary of a scientific theory: "cells are the most basic structural and functional units of life. all living organisms are made up of one or more cells. all cells that are alive in the world today came from pre-existing cells." which of the following would require this theory to be modified? -a.) a survey finds that a majority of people believe viruses carry out the basic processes of life. -b.) a prominent scientist says she feels strongly that one day the theory will be challenged by life on other planets. -c.) the dna of unicellular and multi-cellular organisms is shown to have many fundamental similarities. -d.) scientific observations show that microscopic organisms living in the deep ocean are not made up of cells.

Which if the following best describes why invertebrates isn’t considered a scientifically valid word when classifying animals