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LSUE BIOLOGY 1001 MIDTERM EXAM 2024 WITH 100% CORRECT ANSWERS

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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 corre...

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  • February 28, 2024
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  • lsue biology 1001 midterm exam 2024 with 100 corr

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LSUE BIOLOGY 1001 MIDTERM EXAM 2024 WITH 100% CORRECT 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. - 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? - correct 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. - correct 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 - correct 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? - correct answer ✔✔All organisms have the ability to maintain a constant internal temperature.
Which of the following statements about genetics is true? - correct 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. - 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 - correct answer ✔✔Hypothesis
Which of the following is a kingdom within the domain Eukarya? - correct answer ✔✔Fungi
Which of the following statements about evolution is true? - correct 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. - 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. - correct answer ✔✔Hydrogen bonds
As ice melts, - correct 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. - 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? - correct 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. - correct answer ✔✔Fewer hydrogen ions
Electrons move about the nucleus of an atom in the same way that - correct answer ✔✔Insects fly around a bright lamp at night
Which of the following best describes the atomic number of an atom? - correct 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? - correct 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 - correct answer✔✔Higher than 7
Compared to a solution of pH 3, a solution of pH 1 is - correct 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 - correct answer ✔✔H2O molecules, H+ ions, and OH- ions
In some areas, fluoride is added during the municipal water treatment process in order to help - correct 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.
c. The energy emitted by radioactive isotopes can break chemical bonds and cause molecular damage in cells.
d. Radioactive elements are natural and therefore not harmful. - correct answer ✔✔The energy emitted by radioactive isotopes can break chemical bonds and cause molecular damage in cells
What is the difference between glucose and fructose linear isomers? - correct answer ✔✔The location of
a double-bonded oxygen atom

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