Steroids
a. have no fatty-acid component.
b. consist of four rings.
c. may have different numbers, types, and
positions of functional groups attached to them.
d. are a specialized type of lipid.
e. are all of these.
Answer: e
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You want to simulate the production of carbon dioxide (CO2) in a laboratory setting using carbon and oxygen atoms. What type of reactions do you need to facilitate in order to create CO2?
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Which of the following statements regarding plasmodesmata is false?
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Cacti in the deserts of southwestern North America and some euphorbs of the deserts of Africa, have barrel-shaped stems, short-lived leaves, and spines, yet these two types of plants are from different evolutionary lineages. This is an example of
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