What is the correct equation for photosynthesis

Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

Match the reproductive structures based on their function and the system to which they belong. egg ovary sperm vas deferens vagina fallopian tube testis urethra