Concept explainers
To determine: The selective advantage of seasonal leaf abscission in woody flowering plants living in colder climates.
Concept introduction: Plants are non-motile living beings that are capable of producing their own food by utilizing the sunlight, carbon dioxide and water. They form the kingdom Plantae that includes all the plants such as trees, shrubs,
To determine: The adaptations that enable conifers to survive colder climates without leaf abscission.
Concept introduction: Plants are non-motile living beings that are capable of producing their own food by utilizing the sunlight, carbon dioxide and water. They form the kingdom Plantae that includes all the plants such as trees, shrubs, bryophytes, and pteridophytes. They are very useful for human beings as they are the source of food and many other utilities. The leaf consists of various tissues. A layer of epidermis is present in the upper and lower surface of a leaf blade.
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Biology (MindTap Course List)
- Modified leaves that enable a stem to climb are called __________, whereas modified leaves that cover the winter buds of a dormant woody plant are called __________. (a) spines; bud scales (b) bud scales; tendrils (c) tendrils; bud scales (d) tendrils; spines (e) carnivorous leaves; spinesarrow_forwardIdentify three major functions of roots. Describe two types of specialized stems. What is each type of stem specialized for? Discuss the main parts of an angiosperm leaf. Predict how the stem of a desert plant might be specialized for its environment. Contrast a taproot system with a fibrous root system. Relate leaf variation to environmental variation.arrow_forwardWhere would you look to find the gametophyte generation of aflowering plant?a. at the shoot apical meristemb. at the root apical meristemc. in seedsd. in flower partse. Flowering plants lack a gametophyte generation.arrow_forward
- Which of the following adaptations allows plants to pause their life cycle until environmental conditions are optimal? a. Stomata b. Phloem and xylem c. Seeds d. Flowersarrow_forwardIn pitcher plants, the leaves terminate with a pitcher-like structure. What special function does this specialized structure serve the whole plant?arrow_forwardWhich of the following meristems are responsible for secondary growth in woody plants? Group of answer choices ground meristem and procambium vascular cambium and protoderm cork cambium and vascular cambium protoderm and procambiumarrow_forward
- The rapid turgor movements of the sensitive plant (Mimosa pudica) are rare in the Plant Kingdom. If all plants evolved such movements, would the phenomenon have possible survival value or other value to the plants? Explain.arrow_forwardThis is the specific tissue that comprise the phloem fiber cap in dicot herbaceous stem. _______________________________ What is the modified function of cladophylls? __________________________ Epiterranean stems that grow in a horizontal direction. __________________ Modified aerial stem that function for support and storage. ____________________________arrow_forwardWhat sorts of anatomical contrasts would you expect between the upper and lower surfaces of a floating leaf plant like water lily? What competitive advantage would be gained by a plant that has colored leaves? Think about where you personally have encountered spiny plants like Swamps, Pastures Thickets, and Deep shade under hardwoods?arrow_forward
- In what ways are conifer leaves adapted to resist waterloss from their surfaces?arrow_forwardExamine an image of longitudinal section through a Coleus stem tip. Draw the apical meristem, leaf primordia (developing leaf), bud primordia (developing axillary buds), nodes, and internodes. How many phytomeres are present in this preparation? Beginning with the apical meristem, follow the development of shoot tissues. Label protoderm, procambium, and ground meristem, pith, and cortex. You will not be able to identify any mature cells or tissues in this slide (keep in mind the size of the shoot tip).What are the mature tissues that each of these primary meristems become?arrow_forwardExplain: Internally, cycad stems are similar to those of seed ferns— a thick cortex containing secretory ducts surrounds a small amount of manoxylic (parenchymatous) wood.arrow_forward
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