Biology 101 Exam Questions With 100% Correct Answers

Biology 101 Exam Questions With 100% Correct Answers These can be bonded to form molecules. - answerAtom Atoms bonded together form these, DNA is an example. - answerMolecule These are (membrane-bound) compartments in the cells of eukaryotic cells. - answerOrganelle Most biologist consider life to begin at this level. - answerCell Cells working together for a common function. - answerTissue Tissues working together for a common function. - answerOrgan Organs working together for a common function. - answerOrgan System Organ systems form this in higher forms of life, this is the highest organization for bacteria and protists. - answerOrganism Organisms that can interbreed and produce viable offspring. - answerSpecies A species in a specific area. - answerPopulation Different populations in a common area. - answerCommunity The community and the nonliving parts. - answerEcosystem 6 - answer6 C 12 What is the atomic number of the above element? Potassium - answerWhich has the higher atomic number? 18Ar40 or 19K39 Calcium - answerWhich is not among the four most common elements? liquid water has greatest density at this temperature - answer4C Water freezes at this temperature - answer0C Water boils at this temperature - answer100 C Much heat is needed to change state of water from liquid to gas - answerHigh heat of vaporization Water changes temperature slowly - answerHigh specific heat Sticks to itself. - answerCohesion Sticks to other things. - answerAdhesion Molecules have more space between them and are less dense. - answerIce Molecules have less space between them and are more dense. - answerLiquid Water Chemicals that don't contain both carbon and hydrogen - answerInorganic Chemicals that contain both carbon and hydrogen - answerOrganic Anything that has mass and volume - answerMatter Matter that can't be changed into something else or broken down by ordinary chemical means. All atoms of a given element have the same number of protons. - answerElement elements to the left of periodic table - answerMetal lements to upper right of periodic table - answerNonmetal vertical portion of periodic table that communicates the number of electrons in outermost electron shell - answerColumn row in periodic table that represents the electron shell(s) - answerPeriod group of elements that have full outer electron shells and therefore don't usually react with other elements - answerNobel Gases two or more atoms bonded together - answerCompound/molecule smallest part of an element that still retains the characteristics of the element, composed of a nucleus and electron cloud - answerAtom The number of protons in a nucleus of each atom of an element. - answerAtomic number The type of covalent bond between oxygen and each hydrogen in water. - answerPolar Covalent A measure of heat. - answerTemperature