Biology 1001 LSU Exam Questions and Verified Answers/Accurate Solutions| New Update
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To test the effect of vitamin D on growth, two groups of rats were raised under identical
conditions and fed the same diet. One of the groups received daily injections of vitamin D. The
other group
received injections of saline, which did not contain vitamin D. All the rats were weighed weekly
for 2 months.
In this experiment, the control was the? group receiving saline.
A good experiment should include as many variables as possible at the same time. True or
False? False
Photosynthetic bacteria are examples of autotrophs. True or False? True
The variation among individuals, on which natural selection acts, is? genetic differences
Why do heterotrophs require "food" for survival? Food provides the organic chemicals
needed by heterotrophs
Science cannot answer certain moral questions because? moral values differ among
individuals.
Imagine that 1 milliliter of an experimental drug diluted in a saline solution is injected
into 20 pregnant mice to determine possible side effects. Which of the following is a suitable
control for this
experiment? 20 pregnant mice injected with 1 milliliter of saline
The experiments of Francesco Redi? disproved the idea of spontaneous generation
, All of the following are scientific principles that underlie scientific inquiry EXCEPT?
natural selection
Which of the following is an example of deductive reasoning? If a new species of bacteria
is discovered, it will be made up of organic molecules
Isotopes are atoms of the same element that have different numbers of protons. True or
False? False
A single covalent chemical bond represents the sharing of how many electrons? 2
If you place a paper towel in a dish of water, the water will? move up the towel as the
water adheres to the paper towel while the cohesive water molecules stay bound to
each other
If a substance measures 7 on the pH scale, that substance? has equal concentrations of
H+ and OH- ions
Which of the following could potentially be a free radical? oxygen (atomic number 8)
What happens when hydrochloric acid (HCl) is added to pure water? The HCl molecules
separate into H+ and Cl- ions
Carbon-14 is often used for carbon dating, where scientists measure the rate of carbon-14
decay to determine the age of items. Carbon-14 contains six protons and eight neutrons. During
the process of
carbon-14 decay, one of its eight neutrons becomes a proton and an electron is emitted. Which
of the following
Already Graded A+
To test the effect of vitamin D on growth, two groups of rats were raised under identical
conditions and fed the same diet. One of the groups received daily injections of vitamin D. The
other group
received injections of saline, which did not contain vitamin D. All the rats were weighed weekly
for 2 months.
In this experiment, the control was the? group receiving saline.
A good experiment should include as many variables as possible at the same time. True or
False? False
Photosynthetic bacteria are examples of autotrophs. True or False? True
The variation among individuals, on which natural selection acts, is? genetic differences
Why do heterotrophs require "food" for survival? Food provides the organic chemicals
needed by heterotrophs
Science cannot answer certain moral questions because? moral values differ among
individuals.
Imagine that 1 milliliter of an experimental drug diluted in a saline solution is injected
into 20 pregnant mice to determine possible side effects. Which of the following is a suitable
control for this
experiment? 20 pregnant mice injected with 1 milliliter of saline
The experiments of Francesco Redi? disproved the idea of spontaneous generation
, All of the following are scientific principles that underlie scientific inquiry EXCEPT?
natural selection
Which of the following is an example of deductive reasoning? If a new species of bacteria
is discovered, it will be made up of organic molecules
Isotopes are atoms of the same element that have different numbers of protons. True or
False? False
A single covalent chemical bond represents the sharing of how many electrons? 2
If you place a paper towel in a dish of water, the water will? move up the towel as the
water adheres to the paper towel while the cohesive water molecules stay bound to
each other
If a substance measures 7 on the pH scale, that substance? has equal concentrations of
H+ and OH- ions
Which of the following could potentially be a free radical? oxygen (atomic number 8)
What happens when hydrochloric acid (HCl) is added to pure water? The HCl molecules
separate into H+ and Cl- ions
Carbon-14 is often used for carbon dating, where scientists measure the rate of carbon-14
decay to determine the age of items. Carbon-14 contains six protons and eight neutrons. During
the process of
carbon-14 decay, one of its eight neutrons becomes a proton and an electron is emitted. Which
of the following
