Caldarchaeol lipids are extremely thermostable tetraethers found in many ________.
A. hypersalinic archaea
B. autotrophic archaea
C. psychrophile archaea
D. hyperthermophilic archaea
Answer: D
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One application of the knowledge of sugar flow in xylem allows for the collecting of sap from maple trees in the:
A. summer B. winter C. fall D. early spring E. None of these is correct
Does the empirical formula for carbohydrates convey any structural information?
a. It may convey structural information for ringed carbohydrates. b. No. c. It may convey structural information for branching chained carbohydrates. d. None of the above.
Fill in the blanks to complete the following statements. ?
Organisms that carry a disease agent to the host are referred to as _______________.? Fill in the blank(s) with correct word
Sea stars prey on clams. Clam fishermen used to cut up sea stars and throw the parts back into the ocean in order to protect the clam beds they fished. Within months, the beds were crawling with even more sea stars, and there were almost no clams
Why, in hindsight, was cutting up the sea stars not such a good idea? A) Sea stars have the ability to regenerate new individuals from body parts. B) Sea stars do not eat clams. C) Cutting up sea stars stimulates spawning of sea stars in the immediate vicinity. D) This allowed the sea stars to reproduce parthenogenetically. E) This allowed sea stars to spawn more easily.