... herbivore browsing. Extensive buttresses furnish support necessary because root systems are shallow, extending laterally to tap the surface layer of nutrients. Mycorrhizae (symbiotic fungal associations) in roots allow direct connection with the litter layer for efficient nutrient absorption. Pollination and seed dispersal are largely by animals, and interactions between plants and animals are very ... limiting and also perhaps highly susceptible to desiccation. Drought-resistant epiphytes (orchids, bromeliads and cacti) may be abundant. The trees have thicker, more ridged, bark; deeper r...

• Word Count: 12375
• Approx Pages: 50
• Has Bibliography
• Grade Level: Undergraduate

... meristem as the root elongates through the abrasive soil. The cap secretes a polysaccharide slime that lubricates the soil around the growing root tip. Growth in length is concentrated near the roots tip, where three zones of cells at successive stages of primary growth are located. First is the zone of cell division, which includes the apical meristem and its derivatives, called ... and cell elongation within the internode. Axillary buds have the potential to form branches of the shoot system at some later time. Thus there is an important difference in how roots and shoots form lateral...

• Word Count: 3790
• Approx Pages: 15
• Grade Level: High School

... to lose too much water to the environment and in cold conditions the guard cells open up and lose water so they become flaccid. 4 The water is absorbed by the roots in the soil and travels up the plant via the xylem cells and is evaporated out of the plant through the leaves. Xerophytes The xerophyte that I am going to discuss ... is important for successful photosynthesis and respiration. Xerophytes, mesophytes and hydrophytes also have differences in their root adaptations, which allow them to survive in their ecological niche. Hydrophytes have small roots because they are only needed...

• Word Count: 2711
• Approx Pages: 11
• Has Bibliography
• Grade Level: Undergraduate

... plasmodesmata. Tissue: vascular tissue, which guides water and nutrients to the cells of the plant; ground tissue, called pith at the center of the stem, which surrounds the vascular tissue. Roots: Roots serve a variety of functions, among them storage, collection of water and nutrients, and support. Steams: The stem of a plant supply pathways for distributing water and nutrients between the ... roots, leaves, and other parts of the plant. Photosynthesis Photosynthesis plays a crucial role in the carbon cycle. Carbon constantly circulates in the earth's ecosystem. In the atmosphere, it ...

• Word Count: 2632
• Approx Pages: 11

... the health and quality of our environment. Trees are the original multi-taskers. Trees provide social, ecological, and economic benefits. Their beauty inspires writers and artists, while their leaves and roots clean the air we breathe and the water we drink. Trees provide useful products Trees are so integrated into our daily lives that it is easy to forget the whole ... maintenance schemes. Communities can create and enhance areas that can be used for the benefit and enjoyment of every one. Trees can keep the ground stable On sloping sites tree roots act to prevent erosion and stabilis...

• Word Count: 2774
• Approx Pages: 11
• Grade Level: High School

... several times higher; c) the quantities indicated are sure to destroy very vast numbers of individuals of the concerned species, the degree of damage dependent upon the part needed; d) collection of roots or bark which is done on unscientific basis, or collection of whole plants causes far greater destruction than the collection of fruits and seeds; and e) that some arborescent species appear ... ...

• Word Count: 2704
• Approx Pages: 11
• Grade Level: Undergraduate