ACTUAL MIDTERM EXAM OF LSUE Biology 1001 - j.fontenot, Biology 1001 - Fontenot WITH ACTUAL CORRECT DETAILED ANSWERS
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LSUE Biology 1001 - j.fontenot, Biology 1001
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LSUE Biology 1001 - J.fontenot, Biology 1001
ACTUAL MIDTERM EXAM OF LSUE Biology 1001 - not,
Biology 1001 - Fontenot WITH ACTUAL CORRECT DETAILED
ANSWERS ACTUAL MIDTERM EXAM OF LSUE Biology 1001 - not,
Biology 1001 - Fontenot WITH ACTUAL CORRECT DETAILED
ANSWERS ACTUAL MIDTERM EXAM OF LSUE Biology 1001 - not,
Biology 1001 ...
ACTUAL MIDTERM EXAM OF LSUE Biology 1001 - j.fontenot,
Biology 1001 - Fontenot WITH ACTUAL CORRECT DETAILED
ANSWERS
A theory is a. an idea that has been proven.
b. a concept in the early stages that still needs to be tested.
c. a description of a belief that invokes the supernatural.
d. an explanation of an idea that is broad in scope and supported by a large body of evidence.
e. All of the choices are correct. - ANSWER-an explanation of an idea that is broad in scope and
supported by a large body of evidence
Which of the following statements regarding a common cellular activity is false? - ANSWER-New cells are
derived from cellular components like organelles
The teeth of grain-eating animals (such as horses) are usually broad and ridged. This makes the teeth
suitable for grinding and chewing. Meat-eating animals (such as lions) have pointed teeth that are good
for puncturing and ripping flesh. This illustrates a. a food web.
b. All of the choices are correct.
c. a result of natural selection only.
d. the connection between form and function only.
e. a result of natural selection as well as the connection between form and function. - ANSWER-a result
of natural selection as well as the connection between form and function
,Which of the following is not an example of evolution that has resulted from human activity? a. Because
of hunting, species such as bears and wolves are in danger of extinction.
.b. Like certain other crops, domesticated strawberries are larger than wild strawberries.
c. Some insect species are now resistant to pesticides.
d. Many strains of bacteria are now resistant to some commonly used antibiotics - ANSWER-Because of
hunting, species such as bears and wolves are in danger of extinction.
Which of the following statements about the properties of life is false? - ANSWER-All organisms have the
ability to maintain a constant internal temperature.
Which of the following statements about genetics is true? - ANSWER-Differences among organisms
reflect different nucleotide sequences in their DNA.
An antibiotic kills 99.9% of a bacterial population. You would expect the next generation of bacteria. a. to
be just as susceptible to that antibiotic as was the previous generation.
b. to be more resistant to that antibiotic.
c. to die out due to the drastic decrease in population size.
d. to be more contagious than the prior generation.
e. All of the choices are correct. - ANSWER-To be more resistant to that antibiotic.
You notice that over the past month, many students on campus have started wearing a new style of
school sweatshirt. You think to yourself that perhaps the bookstore has recently started selling this new
sweatshirt style. This prediction is an example of - ANSWER-Hypothesis
Which of the following is a kingdom within the domain Eukarya? - ANSWER-Fungi
Which of the following statements about evolution is true? - ANSWER-Evolution can result in adaptations
Kingdom Fungi includes species a. such as mushrooms and plants.
b. that obtain food by ingestion.
c. that use photosynthesis to obtain food.
,d. that obtain food by decomposing dead organisms and absorbing the nutrients.
e. All of the choices are correct. - ANSWER-That obtain food by decomposing dead organisms and
absorbing the nutrients
Water's surface tension and heat storage capacity is accounted for by its a. orbitals.
b. hydrogen bonds.
c. mass.
d. size. - ANSWER-Hydrogen bonds
As ice melts, - ANSWER-Hydrogen bonds are broken
Which of the following statements regarding matter is false? a. All life is composed of matter.
b. All matter has mass.
c. All matter is composed of elements.
d. All matter exists in the form of compounds.
e. All of the choices are correct. - ANSWER-All matter exists in the form of compounds
Which are weak bonds that are not strong enough to hold atoms together to form molecules but are
strong enough to form bonds within and around large molecules? - ANSWER-Hydrogen bonds
You've been experiencing acid indigestion lately, and you'd like a quick fix for the problem. You do a little
research on the Internet and discover that your problem is caused by excess stomach acid. In the
pharmacy aisles, however, you're having a little trouble deciding what to purchase to address the
problem. At the pharmacy counter, the clerk recommends that you purchase PEPCID AC or Alka-Seltzer
tablets.
If you were able to chemically analyze your stomach fluids 30 minutes after taking two tablets, you
would find. a. more hydrogen ions.
b. fewer hydrogen ions.
c. the same number of hydrogen ions.
d. that the pH in your stomach has decreased. - ANSWER-Fewer hydrogen ions
, Electrons move about the nucleus of an atom in the same way that - ANSWER-Insects fly around a bright
lamp at night
Which of the following best describes the atomic number of an atom? - ANSWER-The number of protons
in the atom
Clot formation in our blood can lead to a heart attack or stroke. What was altered in the proteins that
made the clot? - ANSWER-The proteins were no longer soluble in the blood
You've been experiencing acid indigestion lately, and you'd like a quick fix for the problem. You do a little
research on the Internet and discover that your problem is caused by excess stomach acid. In the
pharmacy aisles, however, you're having a little trouble deciding what to purchase to address the
problem. At the pharmacy counter, the clerk recommends that you purchase PEPCID AC or Alka-Seltzer
tablets.
If you could check the pH of the recommended tablets, you would expect it to be - ANSWER-Higher than
7
Compared to a solution of pH 3, a solution of pH 1 is - ANSWER-100 times more acidic
A pharmaceutical company hires a chemist to analyze the purity of the water being used in its drug
preparations. If the water is pure, the chemist would expect to find - ANSWER-H2O molecules, H+ ions,
and OH- ions
In some areas, fluoride is added during the municipal water treatment process in order to help -
ANSWER-Reduce tooth decay
Which of the following statements about radioactive isotopes is true? a. The nuclei of radioactive
isotopes are unusually stable, but the atoms tend to lose electrons.
b. When given a choice between radioactive and nonradioactive isotopes of the same atom, living cells
are more likely to incorporate the radioactive isotopes into their structures.
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