A gymnosperm that produces a long taproot and only two leaves belongs to the genus Gnetum
____________________ Indicate whether the statement is true or false.
F, Welwitschia
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Darwin observed that species found on ocean islands do not resemble species on islands with similar
environment in other parts of the world. __________________ Indicate whether the statement is true or false.
The type of tissue represented by Figure 39-2 is:
a. adipose tissue.
b. bone.
c. cartilage.
d. simple squamous epithelium.
e. elastic connective tissue
Identify the labeled muscles in the picture. 
What will be an ideal response?
A researcher studying a member of the Conus genus of cone snails discovers that there are many dozens of slightly different variants of venom proteins coded by closely related genes. What is the most likely explanation for this great variation? [Hint: The compounds likely diversified in a similar way as the multiple globin proteins in mammals did.]
A. Concerted evolution resulted in the production of many venom genes, scattered throughout the genome. B. Hybridization between two snail species has left the offspring with multiple orthologous genes. C. Multiple gene duplication events have led to the production of a paralogous multigene family. D. Duplicated genes underwent incomplete gene conversion, leading to many errors in sequence. E. The last common ancestor of all cone snails had a diverse set of venom genes that have been inherited by all cone snails.