No, it's not B. The energy needed to "pump" sodium outside the cell in active transport is ATP. When ATP releases energy (for metabolism usage) during active transport, the sodium is discarded.
Food vacuole is used to store and digest food in amoeba
Answer:
a long rodlike structure that develops dorsal to the gut and ventral to the neural tube. The notochord is composed primarily of a core of glycoproteins that are encased in a sheath of collagen fibers wound into two opposing helices.
Humans can will themselves to eat more, as we know that food comes easy to us.
Animals, on the other hand, top priority is survival, so they usually wouldn't think about eating more because it just "tastes good."
Facilitates the roots of plants going down towards gravity and the stems to rise up away from gravity. ... Thus, the difference is that geotropism is driven by gravity and phototropism is driven by light.
