A saturated hydrocarbon molecule has
a. three double bonds.
b. one double bond.
c. one double and one triple bond.
d. all single bonds.
e. all triple bonds.
D
You might also like to view...
If it were found that all animals except the Parazoa had a particular set of genes, one could conclude
A. that those genes are not useful in interpreting phylogeny. B. that Darwin was incorrect in his idea about descent with modification. C. that the Parazoa are not animals. D. that those genes probably are related to the embryonic formation of tissues. E. that those genes are related to cell wall formation.
Which of the following regarding the Haversian System is false?
A. Haversian canals may contain nerve fibers. B. Haversian canals run parallel to the length of long bone. C. Haversian canals are created by osteoclasts that tunnel through the bone matrix. D. It keeps osteocytes alive.
A parasitic plant without chlorophyll is likely to lack leaves.
Answer the following statement true (T) or false (F)
Give an example of two groups of closely related organisms that have developed divergent traits because nat-ural selection has worked differently on them,
and then contrast this with two groups of organisms that share one or more similarities because they are ex-posed to similar selective conditions. Explain the selective forces that have worked on these groups of organ-isms in both examples, and use the scientific term given to each set of conditions. Try to use examples other than those presented in your text. What will be an ideal response?