C. because stimuli is how your body responds to something, and in this case, someone's heart rate increases WHEN their blood oxygen drop. Do you see how it responds? ;-)
Make sure you post the picture of the tree, so I can answer.
Vascular Plants co<span>ntain tubes that help transport water and nutrients into their other parts.</span>
Answer:
See the answer below
Explanation:
In order to test for starch and distinguish the beaker containing a mixture of startch and water, a small quantity of the solutions in each beaker should be taken and and drops of iodine added. The solution that gives off a <u>blue/black</u> color from the yellow/brown color of the iodine would be the starch water solution.
<em>Generally, starch turns iodine solution to blue/black from the usual yellow/brown color of the substance.</em>
