In scientific terms, the evolutionary history and relationship of an organism or group of organisms is called phylogeny. Phylogeny describes the relationships of an organism, such as from which organi...In scientific terms, the evolutionary history and relationship of an organism or group of organisms is called phylogeny. Phylogeny describes the relationships of an organism, such as from which organisms it is thought to have evolved, to which species it is most closely related, and so forth. Phylogenetic relationships provide information on shared ancestry but not necessarily on how organisms are similar or different.
The Earth’s biomes are categorized into two major groups: terrestrial and aquatic. Terrestrial biomes are based on land, while aquatic biomes include both ocean and freshwater biomes. The eight major ...The Earth’s biomes are categorized into two major groups: terrestrial and aquatic. Terrestrial biomes are based on land, while aquatic biomes include both ocean and freshwater biomes. The eight major terrestrial biomes on Earth are each distinguished by characteristic temperatures and amount of precipitation. Comparing the annual totals of precipitation and fluctuations in precipitation from one biome to another provides clues as to the importance of abiotic factors in the distribution of biomes
The Earth’s biomes are categorized into two major groups: terrestrial and aquatic. Terrestrial biomes are based on land, while aquatic biomes include both ocean and freshwater biomes. The eight major ...The Earth’s biomes are categorized into two major groups: terrestrial and aquatic. Terrestrial biomes are based on land, while aquatic biomes include both ocean and freshwater biomes. The eight major terrestrial biomes on Earth are each distinguished by characteristic temperatures and amount of precipitation. Comparing the annual totals of precipitation and fluctuations in precipitation from one biome to another provides clues as to the importance of abiotic factors in the distribution of biomes
This page discusses the rhizosphere's crucial role in enhancing crop drought resistance through root-soil-microbiota interactions and rhizosheath formation, particularly in crops like pearl millet and...This page discusses the rhizosphere's crucial role in enhancing crop drought resistance through root-soil-microbiota interactions and rhizosheath formation, particularly in crops like pearl millet and maize in drought-affected areas of West Africa. Research highlights the importance of mycorrhizal inoculation, genetic control of rhizosheath size, and the influence of root traits on microbial diversity.
This page describes the structure and functions of plant roots, detailing components like the root tip, root cap, and areas for elongation and differentiation. It discusses water and mineral uptake, e...This page describes the structure and functions of plant roots, detailing components like the root tip, root cap, and areas for elongation and differentiation. It discusses water and mineral uptake, emphasizing the importance of root hairs and mycorrhizal fungi. Minerals are absorbed actively, often against concentration gradients, while plants utilize inorganic nutrients directly. Organic fertilizers require breakdown for plant use.
This can happen when there is an underground stem, such as in the system at the top of the diagram on the following page, or to serve as a prop root, as in the center of the diagram. In the diagram be...This can happen when there is an underground stem, such as in the system at the top of the diagram on the following page, or to serve as a prop root, as in the center of the diagram. In the diagram below, label the bolded features, as well as the photosynthetic part of the leaf (the blade) and the stem of the leaf (the petiole).
Secondary Tissues in the Root The pine root below has one layer of periderm fully formed. What are the large holes in the root? In the stem cross section above, label the following: pith, secondary xy...Secondary Tissues in the Root The pine root below has one layer of periderm fully formed. What are the large holes in the root? In the stem cross section above, label the following: pith, secondary xylem, xylem ray, vascular cambium, secondary phloem, phloem ray, cortex, phelloderm, cork cambium, cork, and epidermis. Next, indicate where the oldest and youngest xylem cells are located. Note: the newest cells will be located closest to the meristem that produced them!
The content for this subtopic is found in two external pages. Please click the links below to access this information. Extreme Cold Hardiness in Ectotherms Costanzo, J. P. (2011) Extreme Cold Hardines...The content for this subtopic is found in two external pages. Please click the links below to access this information. Extreme Cold Hardiness in Ectotherms Costanzo, J. P. (2011) Extreme Cold Hardiness in Ectotherms. Nature Education Knowledge 3(10):3 Plant-Soil Interactions: Nutrient Uptake Morgan, J. B. & Connolly, E. L. (2013) Plant-Soil Interactions: Nutrient Uptake. Nature Education Knowledge 4(8):2
