Habitat, natural home of an organism

123456
Across
  1. 3. Mass movement of animals in search of food, water or shelter
  2. 4. Its seed is dispersed by water
  3. 5. It helps the fish to change direction
  4. 6. Anything that occupies space and has mass
Down
  1. 1. Plant that reproduce by its leaves
  2. 2. The natural home of an organism