Papersbylee

How does internal fertilization facilitate life on land? - ANSWERInternal fertilization allows the sperm to reach the egg without either gametes drying out If a hermaphrodite self-fertilizes will the offspring by identical to the parent? Explain? - ANSWERNo. Owing to random assortment of chromosomes during meiosis the offspring may receive the same copy or different copies of a particular parental chromosome from the sperm and the egg. Furthermore, genetic recombination during meiosis will re...

Imagine a group of wild turkeys. Some can run faster than others and so can escape their predators better. This process is called - ANSWERnatural selection What is the correct order for organization of life from smallest to largest? - ANSWERmolecule, organelle, cell, organism, population, community The statement DNA --> mRNA --> protein is referred to as - ANSWERthe Central Dogma True or false? A scientist is more certain of a theory than a hypothesis. - ANSWERtrue Because a wa...

During a study session about evolution, one of your fellow students remarks, "The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result." Which statement is most likely to be helpful in correcting this student's misconception? - ANSWERCharacteristics acquired during an organism's life are generally not passed on through genes. Charles Darwin was the first person to propose - ANSWERa mechanism for evolution that was supported by evide...

Consider a neutral atom with 30 protons and 34 neutrons. The number of electrons in this atom is? A. 30 B. 32 C. 34 D. 64 E. 94 - ANSWERA. 30 Identify the noble gas in the following list. A. oxygen B. Helium C. Chlorine D. Gold E. Nitrogen - ANSWERB. Helium The formation of a gas resulting from the escape of high-energy particles from the surface of a liquid is known as. A. deposition B. evaporation C. melting D. Boiling E. sublimation - ANSWERB. Evaporation Which...

Any ionic compound containing group IA or NH4+ cations are.... - ANSWERAlways Soluble Ionic compounds containing NO3-, NO2-, ClO3-, ClO4-, C2H3O2-, & HCO3- anions are - ANSWERAlways Soluble Ionic compounds containing Cl-, Br-, & I- anions are soluble EXCEPT when combined with... - ANSWERAg, Hg, and Pb cations Ionic compound containing SO4^2- are soluble EXCEPT when combined with... - ANSWERAg, Hg, Pb, Ca, Sr, Ba Ionic compounds containing So3^2-, S^2-, CO3^2-, PO4^3-, CrO4^2-, & CrO7...

Length - ANSWERmeter (m) Mass - ANSWERkilogram (kg) Time - ANSWERsecond (s) Temperature - ANSWERKelvin (K) Amount of Substance - ANSWERmole (mol) Electric Current - ANSWERampere (A) Luminous Intensity - ANSWERcandela (cd) Standard Platinum-Iridium Cylinder - ANSWERthe mass is defined by an artifact ( Standard Platinum-Iridium Cylinder ) Derived Units - ANSWERa combination of basic units Liter (L) 1 L = 1000 cm3 Significant Figures - ANSWERrepresents the precision in ...

Name the 6 polar aprotic solvents - ANSWERacetone, acetonitrile, DMSO, DMF, HMPA, THF Name the 5 polar protic solvents - ANSWERacetic acid, ethanol, formic acid, methanol, water ______ and ______ mechanisms are two step reactions that have _____ intermediates. - ANSWERSN1; E1; 2 Intermediates each ______ and ______ mechanisms are one step reactions that have _____ intermediates. - ANSWERSN2; E2; 1 Intermediate each Allylic - ANSWERresonance stabilized (carbon bonded directly to a C=C...

Matter - ANSWERAnything that has mass and occupies space Chemistry - ANSWERThe study of composition of matter and the changes that matter undergoes Organic Chemistry - ANSWERThe study of compounds containing carbon Inorganic Chemistry - ANSWERStudy of substances that do not contain carbon Biochemistry - ANSWERArea of chemistry that focuses on processes that take place in organisms Analytical Chemistry - ANSWERArea of chemistry that focuses on the composition of matter Physical ...

anode - ANSWERIn electrophoresis, the electrode having a positive charge is the: a) indicating electrode b) anode c) reference electrode d) cathode Sodium fluoride - ANSWERWhich of the following additives is recommended for preservations of glucose in blood samples to prevent glycolysis? a) Citrate b) Heparin c) Sodium fluoride d) EDTA Insulin - ANSWERWhich of the following hormones acts to lower the concentrations of glucose in the blood? ...

In general, when is electromagnetic radiation produced? - ANSWERWhen charged particles move. According to the Bohr model of the atom, the single electron of a hydrogen atom circles the nucleus..how? - ANSWERIn specific, allowed orbits. All orbitals within the p sublevel.. - ANSWERare at the same energy and have the same shape What is true about microwave ovens? - ANSWERMicrowave ovens heat food by rotating water molecules Visible light, X rays, infrared radiation, and radio waves all...