About 2/3 of a shark's brain is used for:
a. control of body movement.
b. processing electrical currents from the water.
c. olfaction.
d. vision.
e. processing water pressure differences.
C
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Goblet cell hyperplasia is associated with asthma. Based on their function, what is the likely outcome of an overabundance of goblet cells?
A. decreased mucus production B. excess mucus production C. excess O2 absorption D. decreased CO2 absorption Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about goblet cells? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Four of the following statements about fossils found on the island of Flores are true. Which one is the exception?
a. They are shorter than modern humans. b. They have very small brains. c. They are 200,000 years old. d. They have a heavy brow ridge. e. They are small.
Poriferans are
a. herbivores. b. filter feeders. c. scavengers. d. predators. e. carnivores.
________ is the interaction between the products of two genes in which one of the genes modifies the phenotypic expression produced by the other.
Fill in the blank(s) with the appropriate word(s).