Answer: The role of substance A in photosynthesis is: it combines with water to form glucose.
Explanation:
Answer:
C) respiratory: Circulatory
Explanation:
Oxygen travels through the blood stream to muscles, and cells
Glucose and oxygen react together to produce energy.
The correct answer in this question is letter B. Taste buds that are located at the tongue recognize some dissolved chemicals from the food for taste perception. Examples are hydrogen ions giving off sour taste, carbohydrates for sweet taste, magnesium ions give off bitter taste, sodium ions for salty taste and monosodium glutamate for umami taste.