The process in which neighboring cells influence the development of each other, either by direct contact or by production of chemical signals, is called
A. maternal determinants.
B. induction.
C. neurulation.
D. gastrulation.
E. homeotic pattern formation.
Answer: B
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How can you recognize a reliable source of information?
A. By checking whether the information was peer-reviewed B. By checking whether the source of information is primary C. By checking whether the authors are well qualified D. All of the above are ways to check whether a source is reliable
The pulmonary capillaries
a. are closely associated with alveoli but do not fuse. b. fuse with the alveoli to facilitate gas exchange. c. bring oxygenated blood back to the heart. d. bring deoxygenated blood back to the heart. e. fuse with the alveoli to facilitate gas exchange, and bring oxygenated blood back to the heart.
Which part of the amphibian life cycle prevents them from being fully terrestrial?
a. finding a mate b. reproduction c. respiration d. obtaining food e. locomotion
Water has very special properties that not all chemicals share. Which of the following is not a property of water?
A) requires a lot of energy to evaporate it B) prevents wide temperature fluctuations C) interacts with lots of different substances D) is nonpolar