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Trier and tryer are often confused. Trier is someone who tries. Tryer is not a word in British English or American English. However, tryer is used so commonly, Microsoft's spellchecker does not correct it.
- Flier
"Flier" and "Flyer" are easy to confuse because they sound...
- Proper Noun
A proper noun is the name given to something (e.g.,...
- Flier
May 11, 2023 · tryer (plural tryers) Alternative spelling of trier. , “Essay V. Proposing Some Particulars wherein Natural Philosophy may be Useful to the Therapeutical Part of Physick.”, in Some Considerations Touching the Vsefulnesse of Experimental Naturall Philosophy,, part II, section I (Of It’s Usefulness to Physick), chapter III, I had once ...
Our Biology Dictionary is the largest dictionary of Biology terms and definitions in the world. Learn various topics, concepts, and principles in Biology by searching the definitions and essential details of 70,000+ Biology terms.
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- Function of Cells
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Cells are the basic unit of life. In the modern world, they are the smallest known world that performs all of life’s functions. All living organisms are either single cells, or are multicellular organisms composed of many cells working together. Cells are the smallest known unit that can accomplish all of these functions. Defining characteristics t...
Scientists define seven functions that must be fulfilled by a living organism. These are: 1. A living thing must respond to changes in its environment. 2. A living thing must grow and develop across its lifespan. 3. A living thing must be able to reproduce, or make copies of itself. 4. A living thing must have metabolism. 5. A living thing must mai...
Because of the millions of diverse species of life on Earth, which grow and change gradually over time, there are countless differences between the countless extant types of cells. However, here we will look at the two major types of cells, and two important sub-categories of each.
Archaebacteria
As mentioned above, archaebacteria are a very old form of prokaryotic cells. Biologists actually put them in their own “domain” of life, separate from other bacteria. Key ways in which archaebacteria differ from other bacteria include: Archaebacteria’s unique chemical attributes allow them to live in extreme environments, such as superheated water, extremely salty water, and some environments which are toxic to all other life forms. Scientists became very excited in recent years at the discov...
Bacteria
You are most likely familiar with the type of bacteria that can make you sick. Indeed, common pathogens like Streptococcus and Staphylococcusare prokaryotic bacterial cells. But there are also many types of helpful bacteria – including those that break down dead waste to turn useless materials into fertile soil, and bacteria that live in our own digestive tract and help us digest food. Bacterial cells can commonly be found living in symbiotic relationships with multicellular organisms like ou...
Plant Cells
Plant cells are eukaryotic cells that are part of multicellular, photosynthetic organisms. Plants cells have chloroplast organelles, which contain pigments that absorb photons of light and harvest the energy of those photons. Chloroplasts have the remarkable ability to turn light energy into cellular fuel, and use this energy to take carbon dioxide from the air and turn it into sugars that can be used by living things as fuel or building material. In addition to having chloroplasts, plant cel...
Epigenetics– The process by which genes are turned “on” or “off” by adding or removing chemical groups from parts of the chromosome.Eukaryotes– Complex cells with multiple chromosomes and internal organelles such as mitochondria, chloroplasts, and nuclei.Prokaryote– Single-celled organisms with a simple structure, typically having one chromosome and no internal organelles.1. Which of the following is NOT an essential function that all living things must perform? A. A living thing must reproduce. B. A living thing must be able to maintain its internal environment, regardless of external changes. C. A living thing must respond to changes in its environment. D.None of the above. 2. Which of the following is NOT a type ...
Neurobiology is the study of the nervous system and how the brain works. The field studies nervous system functions, brain function and the related structures such as the spinal cord. Neurobiology is a subset of both physiology and neuroscience.
Separate Biology courses for AQA and OCR (A), join us from 24-26th August. Book now! For each of the exam boards below, there are revision notes, factsheets, questions from past exam papers separated by topic and other worksheets.
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Jun 12, 2024 · What is biology? Why is biology important? Where do biology graduates work? biology, study of living things and their vital processes. The field deals with all the physicochemical aspects of life.
