Jordan is doing a science fair project on the effects of music on the growth of tomatoes. He has two tomato plants, Plant A and
Plant B, that he grows in a window and gives the same amount of water. Plant A is exposed to classical music using headphones attached to the soil. Throughout the growth period, Jordan counts the number of tomatoes produced by each plant. List one of the experimental constants in this experiment.
Water and sunlight are the experimental constants.
Explanation:
As we know, scientific experiments are composed of variables (dependent and independent) that are factors that researchers can manipulate to provoke a reaction that allows them to observe results. What few know is that in addition to variables, experiments are composed of factors called "constants". Experimental constants are factors that are maintained in the same way throughout the experiment without being manipulated. An example of this can be seen in the question above, where the researcher used as constant the amount of water supplied to plants and the amount of sunlight.
During exercise, your heart typically beats faster so that more blood gets out to your body. Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps.
Primary meristematic tissue helps the plant increase in length or vertical growth, meaning it helps the plant grow up toward the sun and down into the soil.
It is apart of cellular DNA an ATP, and is a major component of bones and teeth, it is often only available in limited quantities in the the environment.
Osmotic pressure is defined as the pressure that must be applied to the solution side to stop fluid movement when a semipermeable membrane separates a solution from pure water.
