Dr. X is studying how anger is related to happiness. His operational definition for anger is how often a person's eyebrows draw or come closer together within a 24-hour period. Is this an operational definition?

Brian researched trees that can be planted for shade during the summer. He came across the Nuttall oak. The average height of the tree is 70 feet. However, there are trees that grow up to 120 feet in height.

What is the main function of fruit

Calculate the area with the appropriate number of significant figures of a rectangular room that is 14.10m wide by 15.0m long A. 212m^2 B. 211m^2 C. 29.1m D. 29.10m

A scientist is analyzing tissue samples from an Asian elephant and an extinct woolly mammoth. When he sequences their DNA, he finds the genetic information of these animals to be about 99% identical, but not exactly the same.

Which of the following tools should a scientist use to measure an object in meters.

In nature, organisms mate without human interference. This is called A) artificial selection. B) selective breeding. C) non-random mating. D) random mating. my answar is B

When trees transpire, releasing gaseous water into the atmosphere, they can absorb heat from their environment and cool it down. What property of water is responsible for this activity? A) High heat capacity B) High heat of vaporization C) Adhesion

How do fronts change weather?

Will iv medication continue to flow when disconnected from the pump

What are the major differences between the anterior and posterior pituitary?