WILL GIVE BRAINLIEST Van Helmont planted a willow tree into a pot containing 200 pounds of dry soil. The tree grew for five years in the pot. Van Helmont then took the tree out and weighed the mass of the soil again. What did he discover? A. The mass of the soil was far more than 300 pounds.
B. The mass of the soil was around 300 pounds.
C. The mass of the soil was far more than 200 pounds.
D. the mass of the soil was around 200 pounds.

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.