Vocabulary 1

3. a plant that completes its life cycle within one year.
5. a plant's response to changes in day length, which can affect flowering and other processes.
7. a waxy layer on the surface of leaves and other plant organs that helps prevent water loss.
11. tissue - a network of specialized cells that transport water, minerals, and other substances throughout the plant.
14. a group of seed-bearing plants that have naked seeds, such as conifers.
15. a plant's growth response to an external stimulus, such as light or gravity.
17. the diploid, spore-producing stage of the plant life cycle.
19. a type of flowering plant that has one cotyledon, parallel veins in the leaves, and other characteristics.
20. plant a plant that has specialized vascular tissue for transporting water and nutrients, such as ferns, conifers, and flowering plants.
22. the embryonic leaf of a seed, which provides nutrients for the developing seedling.
23. a plant that completes its life cycle over two years.
24. a period of suspended growth and development, often triggered by environmental factors such as temperature or moisture.

1. a group of seed-bearing plants that have enclosed seeds, such as flowering plants.
2. a cell formed by the fusion of two gametes during sexual reproduction.
4. a plant hormone that promotes cell elongation and other growth processes.
6. the process by which a seed begins to grow and develop into a new plant.
8. the loss of water vapor from plant leaves through small pores called stomata.
9. plant a plant that lacks vascular tissue, such as mosses and liverworts.
10. the haploid, gamete-producing stage of the plant life cycle.
12. a plant that lives for multiple years and typically regrows each year from its root system.
13. a type of flowering plant that has two cotyledons, net-like veins in the leaves, and other characteristics.
16. a root-like structure found in some nonvascular plants that anchors the plant and absorbs water and nutrients.
18. a large, divided leaf found in ferns and some other plants.
21. a chemical messenger produced by a plant that regulates growth and development.