Trace metals, like iron and magnesium, are considered _Building blocks of molecule__________________, while organic compounds, like vitamins, are considered________Complex Molecule___________
C. a rise in blood carbon dioxide concentration
Explanation:
Negative feed back mechanism refers to the control mechanism in which a product of a particular pathway controls the switch on and switch off of that particular pathway.
Since breathing increases the blood oxygen concentration and lowers carbon dioxide concentration and pH. The sensors that regulate the breathing should respond to oxygen concentration as the carbon dioxide is the by-product of respiration and is responsible for increasing blood pH. Thus increased Carbon dioxide levels in blood is the only factor which will trigger breathing.
I don't personally know this but I looked it up and these were some answers I got.
1. There are no photoreceptors present, therefore vision is lost when light hits this spot (the blind spot)
2. Vision is lost when light hits the blind spot because the blind spot lacks photoreceptors, so light focused on it cannot be seen.
3. The back of your eye contains all of the detectors which sense when light hits them, this is how you see. All of these signals are sent to the brain by the optic nerve, which connects to the back of the eye to receive the signals. Where it connects, however, there are no detectors so there is a small patch which each eye is unable to see and the brain has to fill in based on data from the other eye.
Hope it helped!
Answer: Ask your mom
Explanation: She was in school before you duh
i think nervous tissue is with the one that says send signals between brain and body and muscle tissue is with provide structural support for the organ and don't know the rest of them but u can search it in google.
