In a research, the independent variable is the one which causes a change in the dependent variable. In this case, the nurse visit in hoped to cause reduction of doctor visits. That means the doctor visit is dependent variable and nurse visit will be the independent variable<span>.</span>
The answer is B, as for the flower to produce seeds, it needs to have been previously fecundated by a male gamete.
Answer:
The options are
it was too old to be used in modern times
it was too complicated for scientists to understand
scientists found new evidence to prove it invalid
scientists discovered a shorter theory to replace it
The answer is scientists found new evidence to prove it invalid
Steady State Theory of origin of the universe has been rejected due to new findings about how the universe was formed through carefully observing it which faulted past theories. This validates the option which states that scientists found new evidence to prove it invalid.
Answer:
The density would stay the same.
Explanation:
The density would stay the same as density is an intensive property meaning it doesn't change based on the amount of matter that you have.