Johndocs

Hydrogen️️H Helium️️He Lithium️️Li Beryllium️️Be Boron️️B Carbon️️C Nitrogen️️N Oxygen️️O Fluorine️️F Neon️️Ne Sodium️️Na Magnesium️️Mg Aluminum️️Al Silicon️️Si Phosphorus️️P Sulfur️️S Chlorine️️Cl Argon️️Ar Potassium️️K Calcium️️Ca Scandium️️Sc Titanium️️Ti Vanadium️️V Chromium️️Cr Manganese️️Mn Iron️️Fe Cobalt️️Co Nickel️️Ni Copper️️Cu Zinc️️Z

chemical bond️️the attractive force that holds atoms or ions together ionic bonding️️a force that attracts electrons from one atom to another, which transforms a neutral atom into an ion. covalent bonding️️a bond formed when atoms share one or more pairs of electrons nonpolar-covalent bond️️a covalent bond in which the bonding electrons are equally attracted to both bonded atoms polar️️describes a molecule in which the positive and negative charges are separated polar-...

What is the Law of Conservation of Mass?️️The law that states that mass cannot be created or destroyed in ordinary chemical and physical changes. What is the Law of Definite Proportions?️️The law that states that a chemical compound always contains the same elements in exactly the same proportions by weight or mass. What is the Law of Multiple Proportions?️️The law that states that when two elements combine to form two or more compounds, the mass of one element that combines wit...

matter️️anything that has mass and takes up space atoms️️-the building blocks of matter -the simplest part of an element element️️-each one is made of the same kind of atom -cannot be broken down any further by chemical means currently there are ___ elements️️115 chemical symbol️️-1 or two letters -first letter always capitalized, the second never, chemical "shorthand" -most are derived from either Latin or Greek -some are named after famous scientists -even count...

Atomic radius️️Half the distance between two identically bonded atoms Ionic radius️️The radii of the most commonly found ion of the element. First Ionization Energy️️The energy required to remove one electron from a neutral atom of an element. Electron Affinity️️The energy change that occurs when an electron is acquired by a neutral atom Number of Valence Electrons️️The electrons that are available to be lost, gained, or shared in the formation of chemical compounds. ...

A ________ is the process by which one or more substances are changed into one or more different substances.️️chemical reaction A ___________ represents, with symbols and formulas, the identities and relative molecular or molar amounts of the reactants and products in a chemical equation.️️chemical equation What are the four ways to tell if a chemical reaction has occurred?️️evolution of energy as heat and light, color change, production of gas, and the formation of a precipitat...

Biology️️the scientific study of life What is the fundamental property of ecosystems?️️interactions between the (living and nonliving)things in them Life's hierarchy of organization️️Biosphere > Ecosystem > Community > Population > Organism > Organ System > Organ > Tissue > Cell > Organelle > Molecule Ecosystem️️all the organisms living in a particular area, as well as all the nonliving, physical components of the environment that affect the o...

What are the steps of the scientific method?️️Observation, question, hypothesis, experiment, analysis, conclusion What are the 7 characteristics of living things?️️CHEMGER: cells, homeostatis, energy, metabolism, growth, evolution, reproduction What is the difference between a molecule, atom, compound, and element? (give an example)️️order in size: atom, element, molecule, compound O O H2O H2O atoms make elements 2+ atoms make molecules 2+ elements make compounds How is an ...

prokaryote️️organism without a nucleus, usually unicellular eukaryote️️organism with a nucleus plasma membrane️️flexible, selectively permeable membrane, controls what enters and leaves the cell cell wall️️structure provides support and protection for the cell nucleus️️structure that houses cells genetic info (control center!) chloroplasts️️plastid with chlorophyll in plants that photosynthesis golgi bodies️️organelle serves to PROCESS and PACKAGE lipids and pr...

What are the characteristics of living things?️️Response to Surroundings, reproduction, growth and development, DNA, obtain and use energy, and cell organization What are the three parts of the cell theory?️️All living organisms are composed of cells, the cell is the basic unit of life, and cells arise from pre-existing cells. What are the levels of organization of living things?️️Organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, a...

Know the characteristics of prokaryotes vs. eukaryotes and the kingdoms that fall under each category.️️prokaryotic - (single-celled, 3.5byo, smaller, no nucleus/membrane-bound organelles, Archaebacteria & Eubacteria) eukaryotic - (mostly multicellular (except for some protists), 1.5byo, larger, have nucleus and membrane-bound organelles, Plants, Fungi, Protists, Animals) What is a change in gene frequency of a population over time due to natural selection?️️Evolution Evolution oc...

autotroph️️organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer biosphere️️part of Earth in which life exists including land, water, and air or atmosphere community️️assemblage of different populations that live together in a defined area consumer️️organism that relies on other organisms for its energy and food supply; also called a heterotroph ecology️️scientific study of interac...

biology️️the science of life cells️️basic unit of structure/function in all living things tissue️️groups of specialized cells species️️group of organisms that can breed and produce fertile offspring stimulus️️part of internal/external environment that causes a reaction in an organism homeostasis️️regulation of an organism's internal conditions to maintain life adaptation️️inherited characteristic resulting from changes to species over time science️️body o...

mitochondria️️the "powerhouse" of the cell, which transforms sugar into useful energy is called cytoskeleton️️the system that helps the cell to maintain its shape and structural integrity is organ system️️a group of organs that work together to complete the life function is called pinocytosis️️the movement of bulk fluids across the cell membrane is called active transport️️the use of cellular energy to transport material across the cell membrane mitochondrion️️whi...

what is the workflow for histology (7)️️1) specimen collection 2) grossing 3) fixation 4) processing 5) embedding 6) microtomy 7) routine staining how are specimens received?️️they are removed from the body and sent to receiving area of the lab -in specimen container -if the specimen is sent fresh and no fixed they are in saline or saline gauze characteristics of a specimen container (5)️️-leak proof, screw cap lid -fixative or saline inside -wide mouth -WHMIS label -p...

Questions 1. What are the basic properties of life that biologists use to define living organisms? 2. Why is it challenging to come up with a precise definition of life? 3. How do unicellular and multicellular organisms differ in terms of their organization? 4. What is metabolism, and how is it categorized into anabolism and catabolism? 5. What does homeostasis mean, and why is it important for living organisms? 6. How do living organisms grow, and what role does cell division play in gro...

14.How does the concept of "organization" relate to the complexity of living organisms? 15.Why might some definitions of life include the ability to move, while others do not? 16.How do the processes of anabolism and catabolism contribute to an organism’s survival? 17.What are some examples of organisms that exhibit extreme adaptations for maintaining homeostasis? 18.How does cellular division contribute to the growth of multicellular organisms? 19.What are some examples of asexual ...

What is the formula for calculating cardiac output? A. CO = PA -1SVC B. CO = AO x PA C. CO = HR x SV️️C. CO = HR x SV Stroke Volume is? A. Related to preload B. Related to afterload C. The same as ejection fraction️️A. Related to preload Preload is most impacted by? A. Mean arterial pressure B. Increased filling volumes C. Ejection fraction️️B. Increased filling volumes A patient with chronic untreated hypertension would demonstrate? A. Increased afterload B. Decreased ...

Mineral️️A natural, inorganic substance with a characteristic chemical composition and usually characteristic structure. Mixed cut️️A cutting style that combines brilliant-cut and step cut facets. Abrasions️️Tiny nicks and pits caused by wear and damage to a gem's facet edges or culet. Absorption spectrum️️A pattern of dark vertical lines or bands shown by certain gems when viewed through a spectroscope. Adularescence️️The cloudy bluish white light in a moonstone, caus...

commercially important gems️️Treatments that improve gem appearance and quality increase the supply of... available, affordable️️Treatments that make gems more _____________ and ____________ are an important part of today's gem and jewelry market. disclosed️️All treatments, even suspected or probable treatments, should be ______________ as part of every transaction. gems that are commonly heat treated️️Corundum, tanzanite, zircon, topaz, aquamarine, and amber. heat treat...