A seed is composed of a(n) ______ and ______.
b. ovule; megasporangium
c. ovule; integuments
d. megasporangium; embryo
e. megasporangium; integuments
2. Evolution of the Seed; p. 430; moderate; ans: d
In seed plants, the ______ is called the nucellus.
3. Evolution of the Seed; pp. 430-431; moderate; ans: b
Which of the following was NOT a step in the evolution of the ovule?
b. Production of only four megaspore mother cells per megasporangium
c. Formation of a highly reduced endosporic megagametophyte
d. Production of only one functional megaspore per megasporangium
e. Development of the embryo within the megagametophyte