50 points :D Every person has an ecological footprint. Describe what factors contribute to a person's ecological footprint.

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

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.

Collin would like to use the data a coworker has entered in a database. the problem is the coworker's database software is different from collin's. collin should