Which of these could be caused by a single-celled organism? * John left a bicycle out in the rain, and it began to rust.
Joe mixed baking soda and vinegar, and it started to bubble.
Mikayla left the milk out overnight, and it smelled sour the next day.
Jenny put sugar into some iced tea and stirred it until she could not see the sugar anymore.

Akrabby blind whale has married pearl who has normal vision. oneof their two sons is also colorblind. what arr the genotypes of the parents?

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

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.