Active transport is the moving of molecules across the membrane of the cell against the concentration gradient with the use of ATP.
Low to high concentration. Concentration gradient is the diffusion (movement of molecules from regions of low concentration) from high to low with the gradient. Active transport is from low to high, against the gradient.
Answer:
they can fly , which requires alot of energy & keep their body warm with their feathers
C. Mitosis,
Zygote developed into a multicellular organism......Mitosis
Identical daughter cells produced...Meiosis
Damaged cells in wounds....Mitosis
Reduction in Chromosomes number of daughter cells....Meiosis