From what you currently know, in a spacecraft at a point of weightlessness, which effect is most likely?
A. All balance systems would work similar to being on Earth with normal gravity.
B. There would be absolutely no sense of balance signals without gravity.
C. Gravitational equilibrium would be altered since the otoliths would not be pulled down by gravity.
D. Without gravity, there would be no vertigo.
E. Rotational equilibrium would be lacking and you could not detect head movement.
Answer: C
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Match the following items with the correct phrases.
_______1. In ____________________, bacteria acquire new genetic information in the form of viral genes. _______2. Oswald Avery and his colleagues discovered that DNA is the hereditary molecule while performing ____________________ experiments with Streptococcus pneumoniae. _______3. In ____________________, bacteria acquire new genetic information as a result of absorbing pieces of naked DNA from their environment. _______4. In ____________________, genetic information is passed from one bacterial cell to another via a hollow sex pilus. _______5. In ____________________, bacteria acquire new genetic information when bacteriophages inject bacterial genes. a. conjugation b. lysogenic conversion c. mutation d. transduction e. transformation
Learning new motor skills takes place when one consciously repeats an activity many times and mostly involves the
_____. a. hippocampus b. amygdala c. hypothalamus d. corpus striatum e. cerebellum
Groups of tissues that function together form a(n)
A) system. B) individual. C) gland. D) organ. E) organ system.
Which subatomic particles are always equal in neutral atoms?
a. electrons, neutrons and protons b. electrons and protons c. neutrons and protons d. electrons and neutrons e. nucleus and orbits