An extended period of torpor entered by an animal during the summer when the environment is too hot
and water is too scarce is called
a. estivation.
b. hyperthermia.
c. thermal acclimatization.
d. hypothermia.
e. hibernation.
A
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Water potential in plants consists mainly of _____
A) solute potential and osmotic potential B) solute potential and membrane potential C) pressure potential and solute potential D) pressure potential and membrane potential E) solute potential only
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
Due to the lack of moderate stress on the skeleton, a bedridden person is at risk of
A. rheumatoid arthritis and muscular degeneration. B. osteoarthritis and tendon damage. C. osteoporosis and muscle degeneration. D. cartilage growth and a sprain. E. anemia and cartilage degradation.
Which group is most closely related to fungi?
a. radiolarians b. stramenopiles c. alveolates d. choanoflagellates e. oomycotes