According to the endosymbiosis theory, scientists believe that early eukaryotes formed from prokaryotes. why do scientists believe that
prokaryotes existed earlier than eukaryotes?

What was the land like over 500 million years ago? what was under the sea?

7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?

According to the cell theory, which describes cells? a. all organisms are composed of multiple cells. b. all cells have the same structure and function. c. cells are found in everything on earth. d. living organisms are not created spontaneously