After organic molecules have been formed in abundance, what is the next step that must occur in the
progression toward a living organism?
a. evaporation of the water the organic compounds are dissolved in
b. dehydration reactions linking macromolecule monomers into larger molecules
c. increasing availability of organic compounds
d. the formation of a semi-permeable membrane
e. aggregation of the different organic compounds so all of the pre-cell building blocks are in
the same localized region
E
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Communication between neurons is an example of which type of cell signaling?
A. juxtacrine B. paracrine C. autocrine D. endocrine E. All of these choices are correct.
As adults, __________ are sessile crustaceans
A. ticks B. the decapods C. shrimp D. the uniramids E. barnacles
In photosynthesis, gaseous molecular oxygen (O2) is released. This comes from a compound that goes into photosynthesis. Which compound is it?
a) glucose (C6H12O6) b) carbon dioxide (CO2) c) ATP d) gaseous molecular oxygen (O2) e) water (H2O)
Mamadou has started to experience severe pain due to kidney stones, which he has developed for the first time in his life. A bone scan shows that his bones are losing calcium at an alarming rate and becoming weakened. Based on the information in this
chapter, predict what his physician is most likely to look for. What will be an ideal response?