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5 days ago · By definition, osmosis is the movement of any solvent through a selectively permeable membrane into an area of higher solute concentration, the result of which will be an equalizing of solute concentration on either side of the membrane.
4 days ago · Biological Oceanography: includes marine life (like fish and marine mammals) as well as organisms like bacteria, phytoplankton, and zooplankton. Geological Oceanography: focuses on the structure and formation of the ocean basins. Related Sustainability and Energy Experiments.
1 day ago · Biologists are able to study life at multiple levels of organization, from the molecular biology of a cell to the anatomy and physiology of plants and animals, and evolution of populations. Hence, there are multiple subdisciplines within biology, each defined by the nature of their research questions and the tools that they use.
3 days ago · Chromatin refers to a mixture of DNA and proteins that form the chromosomes found in the cells of humans and other higher organisms. Many of the proteins — namely, histones — package the massive amount of DNA in a genome into a highly compact form that can fit in the cell nucleus.
4 days ago · phytoplankton, a flora of freely floating, often minute organisms that drift with water currents. Like land vegetation, phytoplankton uses carbon dioxide, releases oxygen, and converts minerals to a form animals can use.
- The Editors of Encyclopaedia Britannica
5 days ago · NADP + /NADPH is involved in building triglycerides, cholesterol and steroid molecules, which are important in cell membranes and hormones. It also helps build nucleotides that end up as part of DNA and RNA. The ability to construct certain molecules allows organisms to control their cellular growth and division.
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4 days ago · Brain, the mass of nerve tissue in the anterior end of an organism. The brain integrates sensory information and directs motor responses; in higher vertebrates it is also the center of learning. Learn more about the parts and functions of the brain in this article.
