describe four challenges to plants living on land and how the plants have adapted how to get...
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Describe four challenges to plants living on land and how the plants have adapted
• How to Get Nutrients from land and air? Shoots (stems and leaves) and roots.
• Staying “afloat” in air? Strong support tissue, lignin
Describe four challenges to plants living on land and how the plants have adapted.
• Retaining moisture. Waxy cuticle and stomata (pores) surrounded by guard cells
• Reproducing in air – internal fertilization and embryo development.Seeds enclosed in protective “jackets”
Pollen so sperm won’t dry out
Describe the characteristics of a pteridophyte, and give three examples of these plants.
• Vascular plants(have xylem and phloem) that do not produce seeds, they reproduce by spores
• Ferns, horsetails, club mosses
Describe 2 unique features of angiosperms and how these features help the plants.
• Flowers – attract pollinators
• Fruit – protection of seeds, nutrition of seeds, helps with dispersal
Characterize the two largest evolutionary branches of angiosperms. Describe their differences.
Monocot• Single cotyledon• Parallel veins in leaves
Dicot• Double cotyledon• Veined leaves
Describe ways that humans depend on angiosperms. Name one way you utilized an
angiosperm today.• Food• Animal Food• Clothing • Fuel• Ornamental
Relate the structures of a flower to their reproductive functions, and indicate whether the
structure is male, female, or neither.
Describe root and shoot structures and functions
• Vascular tissue, transport of nutrients and wastes, photosynthesis.
Describe three main plant tissues systems
• Dermal Tissue: Outer covering or “skin” of the plant
• Vascular Tissue: transports water, mineral nutrients, and organic molecules between roots and shoots (ex. xylem and phloem)
• Ground Tissue: tissue in-between dermal and vascular tissue that functions in photosynthesis, storage and support.
Describe the two types of vascular tissue and their specific functions
Xylem• Transports water and
dissolved minerals up
Phloem• Transports food from
leaves to parts of plants that photosynthesize
Waxy cuticleStomata = microscopic pores found on the under side of leaves that open and close
Stomata
Closed
Stomata
Open
Explain how water loss from a plant is regulated