Asubstance continually produced in our cells that may cause damage to dna and other important cell structures over time is known as a

Write a paragraph about why the respiratory system is important and we need to breathe easily. (guys i really need ) x(

Which term defines one's age as measured in years? chronological age biological age social age mental age

Which of these is a sexual stereotype? a) on average, males are taller than females. b) people over the age of 60 are not interested in sex. c) male hormone levels differ from those of females. d) there are more male representatives than female representatives in congress.