Environmental science

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Across
  1. 3. also called a pore found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange.
  2. 4. The The air space found between the sponge and parenchyma cells
  3. 6. each of a pair of curved cells that surround a stoma, becoming larger or smaller according to the pressure within the cells.
  4. 8. single layer of cells on the lower surface of the leaf that contains stomata and guard cells.
  5. 9. a strand of conducting vessels in the stem or leaves of a plant, typically with phloem on the outside and xylem on the inside.
Down
  1. 1. a layer of parallel elongated cells below the epidermis of a leaf.
  2. 2. cuticle covers the leaves of all plant
  3. 5. makes green pigment
  4. 7. This is a single layer of cells containing few or no chloroplasts.