This term is used to describe the fact that plants cycle between two different stages in their life, the diploid sporophyte and haploid gametophyte.
A. tropism
B. sporulation
C. alternation of generations
D. germination
C. alternation of generations
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If a gardener cuts the apical meristem of a plant, lateral buds begin to grow, which causes a bushier shape to develop. This is because the apical meristem normally secretes auxins that
A. suppresses the growth of lateral buds. B. suppresses the growth of the apical meristem. C. stimulates the growth of the apical meristem. D. stimulates the growth of lateral buds. E. stimulates the growth of roots.
Which of the following would not occur in the structure marked by the letter "A"?
a. warming of air b. odor detection c. gaseous exchange of oxygen and carbon dioxide to and from blood d. filtering of dust from air e. moisturizing of dry air
When the continent of Pangea first split apart, it formed
a. a northern landmass called laurasia and a souther landmass called gondwanaland b. thousands of small islands that later joined to form the modern continents c. a western landmass corresponding to north and south america and an eastern landmass corresponding to the other modern continents d. a western landmass corresponding to north and south americas and an eastern landmass corresponding to africa, australia, india and antarctica e. an array of landmasses similar to current ones in a single separation along multiple existing fractures
Replication of the eukaryotic chromosome is initiated at
A. single site. B. two sites. C. 10 sites. D. multiple sites.