The three basic principals of training that are the foundation for developing a successful personal fitness program are a. overload , progression and specificity b. endurance , strength and agility c. overload , frequency and progression d. cardiovascular training , strength training and flexibility

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.

Which of the following is an abiotic factor in an ecosystem? a. bacteriab. airc. niched. grass(abiotic=non-living) me !