What's the difference between tropism in plants and reflex action in animals? (Apart from Tropism refers to growth or turning movement of a plant in attempts to respond to changes in environmental stimulus while reflex action is a involuntary movement made by an organism (animal) in response to a stimulus.)

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

the answer is "a.) well–developed vascular system."

explanation:

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds