C
LO
YC
BIL 150 MALLERY 2021 TEST
D
1-4 EXAM REVIEW
U
QUESTIONS WITH CORRECT
ST
ANSWERS ALL VERIFIED BY
AN EXPERT A+ GRADED
(LATEST UPDATE)
, TEST 1 - ANS TEST 1
an RNA molecule that has catalytic activity? - ANS is a ribozyme
living organisms capable of synthesizing all their need organic molecules using CO2 as its sole
carbon sources are classified as? - ANS autotrophs
the atmosphere inside the Miller and Urey volcanic apparatus was described chemically as? -
ANS a reducing atmosphere with little reactive oxygen molecules
K
ribosomes are a universally present organelle in all cells and are primarily composed of which of
the following molecules? - ANS RNA and proteins
C
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? - ANS true
LO
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? - ANS dependent variable
YC
an inquiry based research approach in biology includes? - ANS 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? - ANS 24
D
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? -
U
ANS 22,920
of the following known facts which would provide some of the strongest evidence for a common
ST
ancestry of all known cellular life? - ANS 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? - ANS 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? - ANS 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? - ANS table