| A | B |
| bryophyte | Nonvascular land plant requiring free water for fertilization. Haploid dominance in life cycle. Some with cuticle and stomata. |
| coal | Solid combustible mixture of organic compounds with 30-98% carbon by weight and is mixed with various amounts of water and small amounts of sulfur and nitrogen compounds. |
| conifer | A gymnosperm; most are evergreen woody trees or shrubs with thickly cuticled needle-like or scale-like leaves |
| cuticle | a transparent covering of waxes and cutin on outer epidermal cell walls of plants. |
| cycad | Slow-growing gymnosperm; its lineage arose in the Permian. Resembles palm trees. |
| deforestation | Removal of all the trees from a large tract of land |
| dicot | Flowering plant generally characterized by embryos with two cotyledons; net-veined leaves; and floral parts arranged in fours- fives- or multiples of these. |
| fern | A seedless vascular plant of moist or wet habitats; has fronds often divided into leaflets. |
| flower | Reproductive structure Of angiosperms only. |
| gametophyte | [Haploid gamete-producing body that forms during plant life cycles. |
| ginkgo | Deciduous gymnosperm; its ancestors were diverse in dinosaur times. |
| gymnosperm | Type of vascular plant in which seeds form on exposed surfaces of reproductive structures such as cones |
| horsetail | Seedless vascular plant; has rhizomes scale-shaped leaves- and hollow photosynthetic stems with silica-reinforced ribs. |
| lycophyte | Club moss are Seedless vascular plants; needs free water to complete life cycle |
| monocot | One of the two classes of flowering plants; monocot seeds contain a single cotyledon |
| moss | Most common kind of bryophyte. |
| ovule | Tissue mass in a plant ovary that becomes a seed; a female gametophyte with egg cell. |
| phloem | The vascular tissue that conducts dissolved sugar and other organic compounds in plants. |
| plant | a multicelled photoautotroph with well-developed root and shoot systems; |
| pollen grain | [Immature or mature sperm-bearing male gametophyte of gymnosperms and angiosperms. |
| pollination | Arrival of a pollen grain on the landing platform (stigma) of a flower's carpel. |
| pollinator | Agent that puts pollen from male on female reproductive parts of flowers of the same plant species. |
| rhizoid | Simple root-like absorptive structure of some fungi and nonvascular plants. |
| rhizome | Short branched and mainly horizontal underground stem of some plant species. |
| seed | Mature ovule with an embryo sporophyte inside and integuments that form a seed coat. |
| shoot system | Aboveground plant parts |
| spore | A reproductive or resting structure of one or a few cells- often walled or coated; used for resisting harsh conditions and/or dispersal |
| sporophyte | Vegetative body that produces spore-bearing structures; grows by mitotic cell divisions from a plant zygote. |
| stoma | A gap between two guard cells in leaf or stem epidermis. Opens or closes to control CO2 movement into a plant and H2O and O2 out of it. |
| vascular plant | Plant with xylem and phloem with usually well-developed roots stems and leaves. |
| xylem | A complex tissue that conducts water and solutes through pipelines of interconnected walls of cells in vascular plants |