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Biology 1610 Final Exam Test PrepBiology 1610 Final Exam Test Prep WITH BEST RATIONALES 2024 A+ GRADED TEST NEWEST = ALREADY TESTED AND PASSED€25,08
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Biology 1610
Biology 1610 Final Exam Test Prep WITH BEST RATIONALES 2024 A+ GRADED TEST NEWEST = ALREADY TESTED AND PASSED
Biology 1610 Final Exam Test Prep WITH BEST RATIONALES 2024 A+ GRADED TEST NEWEST = ALREADY TESTED AND PASSED
Biology 1610 Final Exam Test Prep WITH BEST RATIONALES 2024 A+ GRADE...
Biology 1610 Final Exam Test Prep WITH
BEST RATIONALES 2024 A+ GRADED
TEST NEWEST = ALREADY TESTED
AND PASSED
,When carrying out a controlled experiment, it is important to:
-subject different groups to different conditions.
-change only one variable at a time.
-change multiple variables at once to see the full effect of the variables.
-All of these choices are correct. - CORRECT ANSWERS-change only one variable at a
time.
Read this story and identify the different aspects of the scientific method by choosing
the statement number
: You get in your car to drive to class.
(1) You turn the key, and the engine starts making a clicking sound, but does not start.
(2) You think to yourself, "The battery must be dead".
(3) So, you borrow the battery from your neighbor's car (with permission, of course) and
exchange it for the one in your car.
(4)You figure that if the battery in your car is dead and you replace it then the car will
start.
(5) You get in the car again, turn the key, and the car starts right up.
Which of these statements is an experiment/test?
Which of these statements is a prediction?
Which of these statements is a observation?
Which of these statements is a hypothesis?
Which of these statements is a theory?
What is wrong with the experiment? - CORRECT ANSWERS-3
4
1
2
none of these
There is no control or repetition
You are working at NASA studying new life forms found in the Cueva de Villa Luz
caves. You have collected an unknown specimen that appear to be 0.5 micron in size,
have a cell membrane and ribosomes. This specimen could be...
a molecule
a prokaryote
,a virus
an archea
either a virus or a bacteria
a eukaryote - CORRECT ANSWERS-a prokaryote
Agrobacterium is a bacterium that infects plants and causes them to form tumors. You
are asked to determine how long a plant must be exposed to these bacteria to become
infected. Which of the following is an appropriate CONTROL for the experiment?
-Expose the plant to another concentration of Agrobacterium for -different lengths of
time and measure tumors formed.
-Use many plants to do the experiment.
-Expose the plant to Agrobacterium for only 1 minute.
-Do not expose the plant to Agrobacterium and measure how many tumors are formed.
- CORRECT ANSWERS-Do not expose the plant to Agrobacterium and measure how
many tumors are formed.
Agrobacterium is a bacterium that infects plants and causes them to form tumors. You
are asked to determine how long a plant must be exposed to these bacteria to become
infected. Which of the following experiments will provide the best data to address that
question?
-Measure the number of tumors formed on plants, which are exposed to a known
concentration of Agrobacterium solution for different lengths of time.
-Measure the concentration of Agrobacterium in different soil environments where the
plants grow.
-Measure the number of tumors formed on a plant when exposed to various
concentrations of bacteria.
-Measure the number of tumors formed on plants, which are exposed to different
concentrations of an Agrobacterium solution for different lengths of time. - CORRECT
ANSWERS-Measure the number of tumors formed on plants, which are exposed to a
known concentration of Agrobacterium solution for different lengths of time.
Many salmon return to the place where they were born to spawn (reproduce). You
hypothesize that they use visual cues to find their way back. To test your hypothesis,
you blind salmon and then examine whether or not they are able to return to their
birthplace. You find that they are able to find their way back. From this experiment, you:
-can't determine whether your hypothesis is supported or not.
-have proven your hypothesis.
-developed a theory about the role of vision in salmon navigation.
-have rejected your hypothesis.
-supported your hypothesis. - CORRECT ANSWERS-have rejected your hypothesis.
An explanation supported by a large body of observations and experimentation is
referred to as a(n):
-investigation
-opinion
-prediction
Let's say you feel very strongly that cigarette smoke does not increase the probability of
getting cancer, and you base your view on something you read on the Internet. This is a
good example of a(n):
-hypothesis.
-none of the other answers are correct.
-observation.
-experiment
-theory. - CORRECT ANSWERS-none of the other answers are correct.
One of your friends is arguing that viruses are alive. What information would you
provide to convince him that viruses can't be considered alive?
-Viruses are much more closely related to archaeons than bacteria.
-Viruses contain either RNA or DNA but not both.
-Viruses cannot carry out metabolic reactions (use energy) on their own.
-Viruses typically have protein coats and no plasma membrane. - CORRECT
ANSWERS-Viruses cannot carry out metabolic reactions (use energy) on their own.
All of the following are TRUE statements about atoms except:
-Atoms are the unit of composition for elements.
-Atoms are the smallest building block that is considered to be alive.
-Atoms are the basic unit of matter.
-Atoms cannot be broken down by normal chemical means but can gain or loose
electrons
-Atoms contains protons, electrons, and neutrons (almost always).
-Atoms have negatively charged particles circling around a positively charged nucleus. -
CORRECT ANSWERS-Atoms are the smallest building block that is considered to be
alive.
Carbon as it appears on the periodic table is shown below.
Carbon has an atomic number of (ANSWER) which represents the number of
[ANSWER]
Carbon has [ ANSWER] electrons with [ANSWER] in the inner shell and [ANSWER] in
the outer, valence shell.
Carbon has an atomic mass of [ANSWER] . This indicates that most carbon atoms have
[ANSWER] neutron (mass minus protons). The fact that this is not an even number
indicates that there are other rare forms of Carbon, called isotopes, that have different
numbers of [ANSWER] . - CORRECT ANSWERS-6
protons
6
2
4
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