When small molecules are linked together to form larger molecules, the increase in entropy typically comes from:
A. light.
B. heat.
C. work.
D. gas.
E. enzymes.
Answer: B
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"Robust australopithecines," now classified in the genus Paranthropus, are distinctive as compared to other hominins because of their ________
A) great height B) unusually large brains C) knuckle-walking ability D) cave paintings and other artwork E) huge teeth, faces, jaws, and jaw muscles
The diversity in a mangrove marsh community is high if
A. the proportion of red mangroves, white mangroves, and black mangroves is equal. B. the proportion of red mangroves is far greater than white mangroves and black mangroves. C. there are a few species of mangroves, a few species of invertebrate animals, and a few species of vertebrate animals. D. All answers are correct.
In the spring before the leaves come out, maple trees are often tapped to collect sap to make syrup. The sugars were stored in the wood of the tree as starch and then released as temperatures rise above freezing in late winter. Which of the following tissues would contain the starch over the winter?
A. xylem B. phloem C. parenchyma tissue D. collenchyma tissue E. roots
An ecological area inhabited by a specific species is its ________.
Fill in the blank(s) with the appropriate word(s).