Which of the following describes a gametangium?
a. the structure in which gametes are produced
b. a type of haploid plant that produces gametes
c. the growing point at the tip of a shoot
d. the structure responsible for water transport
a. the structure in which gametes are produced
You might also like to view...
Type IV pili are involved in
A) attachment of cells to surfaces. B) twitching motility. C) pathogenesis. D) attachment to surfaces, twitching motility, and pathogenesis.
The FtsZ gene in bacteria encodes an ancestral tubulin that is important in binary fission (the mechanism of cell division in prokaryotes). To study the FtsZ gene in eukaryotes, researchers made an FtsZ knockout in the moss What is true about this knockout plant?
A. The knockout plant is heterozygous for an abnormal FtsZ gene. B. The knockout plant does not produce any normal FtsZ protein. C. The knockout plant contains a copy of the bacterial FtsZ gene. D. The knockout plant makes bacterial FtsZ protein. E. The knockout plant makes half the normal amount of FtsZ protein.
The muscle at the distal end of the stomach (at the entrance to the duodenum):
What will be an ideal response?
Select the best answer to complete the following statement. Stomata are openings used by plants for the passage of
A. carbon dioxide, oxygen, and water vapor. B. only carbon dioxide and spores or gametes. C. only oxygen and carbon dioxide. D. only carbon dioxide and pollen. E. only carbon dioxide and water vapor.