A stamen is
a. composed of a stigma, a style, and an
ovary.
b. the mature male gametophyte.
c. the site where microspores are produced.
d. part of the vegetative phase of an
angiosperm.
e. none of these.
C
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Wheat is a group of grass species. Cultivation originated in the eastern Mediterranean about 10,000 years ago
In comparison to closely related wild grasses, cultivated wheat has shorter stalks and fewer, larger seeds that are firmly attached to the stalk and are unable to disperse via wind like other grasses. Which of the following provides an explanation as to why wheat is so successful despite the loss of seed dispersal? A. Wheat seeds are dropped below the parent plant and will grow the following season. This maintains the worldwide distribution of wheat. B. Wheat seeds are collected and dispersed by humans. Their worldwide distribution increases every time a new field of wheat is planted. C. Wheat seeds have evolved to be consumed by animals. Wheat seeds no longer rely on wind as its dispersal mechanism. D. Wheat seeds are not required for reproduction. Because it is a grass species, it has asexual reproduction.
While walking in a tropical forest, you come upon a 6-meter-tall plant that shows no evidence of seed production. The plant is most likely a(n)
A) angiosperm. B) gymnosperm. C) alga. D) bryophyte. E) fern.
Figure 39.10A, B, and C
The following question refers to the figure above.
?
A blood vessel is indicated by the letter ____.
A. A B. B C. C D. D E. E
The antibody function known as (agglutination/neutralization/opsonization) is illustrated in Figure 16.3.
Fill in the blank(s) with the appropriate word(s).