Which of these is purposefully changed during a scientific investigation?

A. Test variable (independent variable)

B. Outcome variable (dependent variable)

C. Control group

D. Hypothesis

Connective tissue includes fat cells, cells, {blank} and blood cells

What are the pros and cons of sexual and asexual reproduction

What happens if fertilizer goes in streams or lakes?

10. What is the difference between a scientific theory and a scientific law?

Which of the following is the smallest unit that would contain a complete copy of the entire human genome? A) one human somatic cellB) one human chromosomeC) all of the DNA of one humanD) one human gene

Why does air at 75% relative humidity and 30°C make your skin feel stickier than air at 75% relative humidity at 10°C? A. Warm air rises while cold air falls. B. The warmer air contains less water vapor per unit of volume. C.

When the two solutions are mixed, a clear solution with white powder at the bottom results., What has caused this change?

What receptor type is exemplified opening a channel to get sodium into the cell

What is the total amount of tissue of all organisms in a food chain called?

If an entire stack of rock layers has been folded, which of these would have occurred most recently?