True or false: Meiosis is a method of reproduction for some single-celled organisms

According to this food web which of the following would be considered primary consumers

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?

Ascientific idea becomes valid when it is what?