Plants SOL 4.4 a state of lower activity that plants enter to survive colder weather dormancy a substance, like a mineral, that all living things need to grow nutrient the process by which a plant makes its own food photosynthesis a gas breathed out by animals carbon dioxide a tiny cell that ferns and fungi use to reproduce spore a flower part that makes pollen stamen a flower part that collects pollen pistil the transfer of pollen from a stamen to a pistil by wind or animals pollination where seeds form ovary actual seed ovule small leaves that house the developing flower sepal anchor the plants, take water and nutrients from the soil roots tap root fibrous root used in pollination flower where photosynthesis takes place leaves provide support, allow movement of water and nutrients stems