Bias is characterized as the number one problem of scientific research design because it introduces subjectivity into the experiment.
True
False

9. wind power creates pollution. water air soil noise

During convection, less dense fluid rises and denser fluid sinks.

How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.