BIL 150 MALLERY 2024/25: TESTS 1-4
QUESTIONS WITH COMPLETE COMPLETE
SOLUTIONS!!
TEST 1 Answer - TEST 1 an RNA molecule that has catalytic activity? Answer - is a ribozyme living organisms capable of synthesizing all their need organic molecules using CO2 as its sole carbon sources are classified as? Answer - autotrophs the atmosphere inside the Miller and Urey volcanic apparatus was described chemically as? Answer - a reducing atmosphere with little reactive oxygen molecules ribosomes are a universally present organelle in all cells and are primarily composed of which of the following molecules? Answer - RNA and proteins the formation of new elements of the periodic table occurred by the fusion of preexisting combinations of proteins and neutrons during the Big Band and within dying stars known as Supernova? Answer - true an experimental study is conducted to determine whether or not 10 milligrams of the drug somatostatin can overcome the effect of dwarfism in humans. The change in height of the participants in the clinical trial represent the? Answer - dependent variable 1 / 3
an inquiry based research approach in biology includes? Answer - choose this answer if all of the above aspects on inquiry based research in biology a stable, non-radioactive element is known to have an atomic number of 12, therefore its atomic mass would be? Answer - 24 the half life of radioactive carbon 14C is 5,730 years. A sample of fossilized wood is shown to contain only 6.35% radioactive 14C compared with the amount of radioactive 14C in living wood samples of today, thus the age of the fossilized would be closest to which of the following? Answer - 22,920 of the following known facts which would provide some of the strongest evidence for a common ancestry of all known cellular life? Answer - the universality of the genetic code the type of error occurring in scientific experiments that is due to the intrinsic measurement and/or resolution of an instrument is referred to as? Answer - random error Robert Hazen's lab proposed that minerals might have played a role in allowing early primitive organic molecules to react with each other chemically forming more complex molecules primarily by? Answer - by providing scaffolding support to facilitate concentration one of the most effective ways of presenting numerical data from a clinical trial would likely be a? Answer - table the type of chemical reaction shown in the diagram below is most likely a?Answer - a condensation reaction 2 / 3
homochiral polymeric molecule, such as proteins that occur in living cells today, are composed of? Answer - only one of two possible optical isomers of amino acids thermophilic bacteria, which might have been an initial LUGA, have been hypothesized to have arisen? Answer - around deep ocean hydrothermal vents the type of chemical reaction acting upon the polymer shown in the figure below might best be described as? Answer - a hydrolysis reaction which of the following is likely to be a step within the scientific method in biology? Answer - all of these can be a part of the scientific method the scientific method involves the construction of knowledge based upon observation, testing, and measurement. Identify among these statements the one that can NOT be experimentally based? Answer - choose this answer if all the above statements are experimentally based a hypothesis that has been confirmed through repeated experimental tests over a very long period of time may be referred to as? Answer - a theory which of the following phrases better describes the results of natural selection?Answer - the changes in inherited characteristics of a population the age of mammals is estimated to have begun between 145 and 65 million years ago by using the technique of Molecular Clock Dating which compares DNA sequence differences as species diverge? Answer - true
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