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Which of the following is the smallest unit of organization that can perform all activities required for life? - ANSWERScell With evolution as the core theme of biology, we can explain traits shared by organisms as evidence of __________ and traits that differ among organisms as evidence of __________. - ANSWERSdescent from a common ancestor; adaptation through natural selection Which series of terms is in the correct sequence of biological organization, from the simplest to the most compl...

Define a covalent bond - ANSWERSThe sharing of electron pairs The molecular structure of lipids is unique because - ANSWERSTheir structure is variable since they are not synthesized from a single recognizable molecule What is the main function of phospholipids? - ANSWERSMajor components of biological membranes What is translation? - ANSWERSThe synthesis of proteins using an RNA template What defines a protein tertiary structure? - ANSWERSThe polypeptide chain is bent at specific site...

Evolution - ANSWERSProcess of change that has transformed life on Earth to the diversity of organisms living today. Biology - ANSWERSScientific study of life. Ecosystems - ANSWERSLiving and nonliving components interact. Communities - ANSWERSLiving organisms and species. Species - ANSWERSForms of life. Populations - ANSWERSIndividuals of species. Ex: Sugar maple trees, white-tailed deer Organisms - ANSWERSIndividual living things. Tissues - ANSWERSGroup of cells that work to...

What scientist were credited for their double-helix model for the structure of DNA, and that DNA was the substance of inheritance? - ANSWERSWatson and Crick Adenine and Guanine are - ANSWERSpurines Thymine cytosine and uracil are - ANSWERSpyrimidines Adenine pairs to ________ in DNA - ANSWERSThymine Adenine pairs to ________ in RNA - ANSWERSUracil Guanine pairs to ________. - ANSWERSCytosine Chargaff's rule states - ANSWERSin any organism the amount of A = G, and the amount ...

Evolution - ANSWERSChange over time Cell - ANSWERSsmallest unit of life genetic information - ANSWERSBasis of all life Themes of Biology - ANSWERSevolution, information, energy and matter, interactions, organization Properties of Life - ANSWERSorder, adaptation, regulation, growth and development, response to the environment, reproduction systems biology - ANSWERSAnalyzing interactions among parts of a system Reductionism - ANSWERSreducing complex systems to simple components ...

Matter - ANSWERSAnything that has mass and takes up space Element - ANSWERSA substance that cannot be broken down into simpler substances Compound - ANSWERSA substance consisting of two or more elements in a fixed ratio. essential elements - ANSWERSA chemical element required for an organism to survive, grow, and reproduce. About 20-25% of the 92 natural elements are required for life. trace elements - ANSWERSessential elements that are required by an organism in only minute quantiti...

What is a chromatid? - ANSWERSA replicate chromosome Which term describes centrioles beginning to move apart in animal cells? - ANSWERSProphase What is the G0 phase? - ANSWERSThe cell is not replicating Where do the microtubules of the spindle originate during mitosis in both plant and animal cells? - ANSWERSCentrosome What is the role of the centrosome - ANSWERSForms the microtubules used in the mitotic spindle If a cell has 8 chromosomes at metaphase of mitosis, how many chromos...

Which statement about a dihybrid cross is true? - ANSWERSIt is a cross between identical double heterozygotes When a dihybrid black, normal winged fly is crossed with a double recessive gray, vestigial winged fly, the frequency with which black, vestigial winged and gray, normal winged flies are seen in the progeny is called ______ frequency. - ANSWERSRecombination Epistasis refers to - ANSWERSthe expression of one gene masking the expression of another The major drawback of asexual rep...

Which of the following levels of biological organization is comprised of the living organism and non-living components within a large area of the Earth? - ANSWERSEcosystem Which of the following inferences is crucial to the mechanism of natural selection? - ANSWERSIndividuals in a population of any species vary in heritable traits, Individuals with heritable traits best suited to the local environment will generally produce a disproportionate number of fertile offspring and a population of an...

Neutron - ANSWERSA subatomic particle with neutral charge ( ZERO Charge) Proton - ANSWERSA subatomic particle with positive charge (+1 Charge) Electron - ANSWERSA subatomic particle with negative charge (-1 Charge) Atomic Number - ANSWERSNumber of protons (IDENTIFIES ATOM) Molecule - ANSWERSA stable association of atoms The attractive force that links two atoms together is called: - ANSWERSChemical bond Define an ionic bond: - ANSWERSAttraction of opposite charged ions, (STRONG...