The benefits of physical fitness include an improvement in mood. select the best answer from the choices provided. t f

What is the name of the tool scientists use to identify a species? species key dichotomous key species marker dichotomous marker

Which action occurs in the third stage of cell division a. the nuclear material of a cell is copied exactly b. the nuclear membrane disappears c. the cell forms two nuclei or d. the nuclear material separates, with half moving to wither side of the cell

Explain why hiv is a life-threatening sti.