Nelson Biology 12 Pdf Free
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The biology program at Covenant College offers remarkable opportunities for students to grow intellectually and spiritually. Our rigorous program with its three concentrations offers students broad and varied opportunities to deeply explore biological aspects of God's creation, from cells to ecosystems. Our highly qualified faculty members are passionate about their subject and are committed to mentoring students to a deeper understanding of the beauty, grandeur and intricacy of biological systems and processes both in the classroom and the research lab. Through their interactions with faculty and vibrant community of like-minded peers, students graduate from Covenant's biology department with a deepened view of Christ's pre-eminence in biological aspects of His creation, with a fuller perception of what it means to pursue a scientific calling faithfully, and with skills and knowledge that provide strong foundations for varied callings and professional paths.
Q. If you could compete in an olympic sport, what would it be and why?
A. Powerlifting! Throughout my life since high school I have, to varying degrees, pursued strength training for physical fitness. Of late, my workouts have some fundamental powerlifting moves as a key component. It's fun to dream of incredible lifts that extravagantly exceed my rather humble real life limits.
Covenant College admits students of any race, color, and national and ethnic origin to all the rights, privileges, programs, and activities generally accorded or made available to students at the College. It does not discriminate on the basis of race, color, or national and ethnic origin in administration of its educational policies, admissions policies, scholarship and loan programs, and athletic and other school-administered programs.
I am an interdisciplinary scientist that uses a combination of field surveys, experimental approaches, stable isotope analysis, and mathematical modeling to quantify the functional role of marine organisms in mediating energy flow, biogeochemical cycles, and community structure in coastal and estuarine ecosystems. Although higher trophic level organisms are acknowledged as important in structuring communities and moving energy in ecosystems, the mechanisms and magnitude of their impact is still poorly understood. Recent work suggests a need to more closely examine the ability of animals to significantly impact the flow of materials within and between communities and ecosystems. While nutrient limitation sets the maximum potential ecosystem productivity, the realized productivity is mediated by organisms responding to both biotic (e.g., species interactions) and abiotic (e.g., hydrologic regimes) forces. To address these questions, I study the response of coastal marine organisms and food webs to changes in both biotic and abiotic processes that are either the direct result of human actions or consequences of climate change, with a particular interest in how the movement of fishes influences trophic connectivity at multiple spatial scales.
My background in both biology and biogeochemistry allows me to translate how community level interactions influence ecosystem structure and function. Because Carbon, Nitrogen, Sulfur, and Hydrogen are innate components of all biological material, their stable isotopes can be used as tracers and thermodynamic bookkeeping devices to answer important questions about processes at the organismal, community, and ecosystem scale. My current research is focused on three primary themes: (1) biotic interactions and their controls on trophic transfers, (2) biomass subsidies among coastal ecosystems, and (3) how humans cause change to the flows of materials in food webs.
Nelson, J. A., C. W. Hanson, C. C. Koenig, and J. Chanton. 2011. Influence of diet on stable carbon isotope composition in otoliths of juvenile red drum, Sciaenops ocellatus. Aquatic Biology 13:89-95.
Nelson, J. A., J. P. Chanton, F. C. Coleman, and C. C. Koenig. 2010. Patterns of stable carbon isotope turnover in gag, Mycteroperca microlepis, an economically important marine piscivore determined with a non-lethal surgical biopsy procedure. Environmental Biology of Fishes 90:243-252.
The Nelson lab is looking for students who are excited about studying the genetics and neurobiology of sleep. Students are encouraged to directly contact Dr. Nelson for more information.
At SPU Dr. Nelson has taught a variety of botany, ecology, and marine biology courses, including study tours to Belize and Hawaii. His research involves collaborating with his students on studies of the composition, causes, and consequences of macroalgal blooms in Washington state, funded by competitive grants from the Murdock Charitable Trust, the National Science Foundation, the National Oceanic and Atmospheric Administration, the Washington Department of Ecology, and SPU. A sabbatical in 2000 allowed him to spend four months in Edinburgh working with faculty and students based at the Royal Botanical Garden, Edinburgh, and the University of Dundee. He is also a PADI Master Scuba Diver Trainer, and teaches scuba diving courses at SPU.
The Nelson lab uses comparative genomic, bioinformatic, and molecular approaches to better understand how plants regulate their stress responses at the RNA level and the degree to which these responses are conserved.
The technology necessary to monitor gene expression in a single cell, within a tissue, or across an entire organism has developed tremendously over the past decade. As a direct result, there are now tens of thousands of publicly available data sets providing snapshots of how plants modulate the transcription of their genetic material to produce a phenotype. In order to appreciate the transcriptional complexity leading to phenotype, it is first necessary to understand the full composition of the transcriptome itself. Aside from protein-coding RNAs and small RNAs, a third class of transcript has recently been uncovered: long non-coding RNAs (lncRNAs). LncRNAs are emerging as key regulatory molecules impacting how plants respond to changes in their environment such as temperature and water abundance. Despite the their many important roles, lncRNAs remain poorly annotated in plants. LncRNAs are difficult to predict from genomic sequence alone and often require extensive transcriptional information, and the capacity to process that data, to confidently annotate. To overcome difficulties in lncRNA annotation and functional classification, this NSF-funded project is repurposing all (> 100 Tb) publicly available transcriptomic data for the top fifteen most studied model and agriculturally significant plant species (NSF-IOS PGRP 1758532). LncRNAs are being identified, cross-species conservation determined, and putative functional pathways inferred in each of the fifteen focal species.
Across prokaryotes and eukaryotes, RNA chemical modifications are diverse, occur on all classes of RNA molecules, and are physiologically relevant. In plants, just two of the > 150 known RNA modifications have been studied in depth, and primarily in Arabidopsis, where they have been shown to have an impact at both the organismal and cellular levels. Little else is known about the role of the epitranscriptome in plants. This gap in knowledge is in large part due to the cost and technical difficulties of the biochemical assays used to measure abundance of specific RNA modifications. In light of these difficulties, in silico methods have been developed that facilitate high-throughput identification and prediction of these chemical additions. This NSF-funded collaborative project aims to address challenges in identifying modifications and placing them into a biological context by: 1) developing an exhaustive, annotated plant epitranscriptomic resource of over 47 unique modifications using approximately 1 petabase of publicly available RNA-seq data, and 2) provide a biological and evolutionary context for each of these modifications and the RNAs they are found to modify (NSF-IOS PGRP 2023310). To process the wealth of publicly available RNA-seq data and present the resulting information in a manner that will drive hypothesis generation, this project is developing novel computational workflows and data visualization tools. In sum, this project aims to provide the research community with an innovative plant epitranscriptome resource that is supplemented with sufficient biological and evolutionary context to facilitate in vivo functional analyses. This project is a collaboration with Drs. Brian Gregory (University of Pennsylvania), Eric Lyons (University of Arizona), and Rebecca Murphy (Centenary College of Louisiana).
The Nelson and Julkowska labs make up the Mechanisms of Plant Resilience (MoPR) Cluster at BTI. The goal of the MoPR Cluster is to combine the strengths of the two labs (Julkowska = phenomics and stress physiology; Nelson = genomics and RNA biology) to develop a more complete understanding of the genetic and molecular factors associated with tolerance and acclimation to abiotic stress in domesticated plants and their wild relatives (primarily Solanaceae and Brassicaceae). Phenomics approaches will utilize both small scale but high temporal resolution Raspberry Pi imaging as well as large-scale high throughput phenotyping (HTP) platforms. Genomics approaches will span from single-cell RNA-seq to transcriptome-wide association studies (TWAS). Check back soon for more details!
I also serve as a faculty advisor for the Biology Colloquium (BCQ), a student-run course that introduces biology majors to the wide field of careers available to biologists. In addition to acquainting students with different fields in biology, I try to instill an interest in nature and the natural world. Whenever possible, I lead field trips to introduce Chicago undergraduates to wildlife and natural areas in and around Illinois and the Midwest.
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