QUESTIONS & VERIFIED CORRECT ANSWERS |
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Which of the following describes one of the difference between skeletal muscles and cardiac
muscles?
Cardiac muscles contain intercalated discs, whereas skeletal muscles do not
The grey matter of the brain is largely made up of which of the following?
Neuron cell bodies
In order to determine the effects of energy drinks on women's running speed, researchers gave
300 woman an energy drink and then recorded the time it took each of them run 2 miles. After
collecting The results, researchers concluded that energy drinks increase the speed of running in-
which of the following further test would best help support this conclusion?
Repeat the experiment giving half of the woman water and the other half energy drinks
An experienced mountaineer decides to climb Mount Everest, taking the same route in the same
season and with similar materials and equipment used in a fatal 1924 expedition which of the
following is the specific purpose top such a climb?
To assess why the earlier expedition failed
,parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have
recently discovered the worm infestation can relieve the effects of certain autoimmune disorders,
in which of the following ways should the hypothesis be modified, given the new findings?
Worm infestation reduces the severity of certain autoimmune disorders
The vermiform appendix extends from the region of the large intestine known as which of the
following?
Cecum
Which of the following atoms is most likely to become a cation?
Potassium, atomic number 19
Which of the following structures drains oxygen-depleted blood from the kidney?
Renal vein
When a volcano erupts, its actions are similar to which of the following?
A can of soda fizzing when its opened
which of the following molecules contains the fewest covalent bonds?
Chlorine molecule (CI)
Using the equation pH =-log (H+), a solution with a (H+)=10-9 M has a pH of which
of the following?
9
Water molecules enter cells by which of the following transport mechanisms?
,Facilitated diffusion
What are the three types of salivary glands and where are they located in the mouth?
- Parotid, sublingual, and submandibular glands located in the roof of the mouth, cheeks, and
under the jawbone, respectively.
Which of the following substances is excreted by the kidneys to regulate blood pressure?
- Renin
What is the chemical formula for water?
- H20
Which of the following units is used to indicate length?
M
researcher collects data on the number of cars passing through a busy intersection at different
times of the day for a month. This data would be most useful to analyze which of the following:
- traffic patterns during rush hour
What is the largest organ in the human body by surface area?
- Skin
Which of the following describes the function of ligaments?
- Ligaments attach two bones
What is the difference between innate and adaptive immunity?
, - Innate immunity is present at birth while adaptive immunity is acquired after exposure to
pathogens.
Which of the following is responsible for carrying amino acids to ribosomes during protein
synthesis?
- tRNA
What are the steps involved in the scientific method?
- Observation, hypothesis, prediction, experimentation, analysis, conclusion.
What is the difference between a solid and a liquid?
- Solids have a definite shape and volume while liquids have a definite volume but no fixed
shape.
Which part of the respiratory system is responsible for regulating breathing rate and depth?
- Diaphragm
What is the difference between a monosaccharide and a disaccharide?
- Monosaccharides are simple sugars that cannot be further broken down into simpler sugars
while disaccharides are composed of two simple sugars.
Which of the following is the process by which DNA is copied into RNA?
- Transcription
What is the role of calcium in muscle contraction?