Microsporocytes and megasporocytes are associated with which type of plant?
a. lichens
b. gymnosperms
c. liverworts
d. mosses
b. gymnosperms
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Which process is the driving force behind the movement of xylem sap upward through the tracheids and vessels in xylem?
1.Bulk flow 2.Osmosis 3.Plasmolysis 4.Transpiration
The hadal zone is that part of the benthic environment deeper than 6000 m. Indicate whether the statement is true or false
In the life cycle of a pine tree, meiosis in the megasporocyte produces _________.
A. Two haploid microspores and two haploid megaspores B. Four haploid microspores C. Four haploid megaspores D. Two diploid megaspores E. Two diploid microspores
Conjugation is a process in which:
a. a virus, containing pieces of bacterial DNA that it inadvertently picked up from its previous host, infects a bacterial cell. b. a bacterial cell bursts open, releasing short lengths of DNA, which are taken up by another bacterial cell and inserted into its own genome. c. exact copies of a bacterial cell's DNA are transferred into daughter cells. d. a bacterium transfers a copy of some or all of its DNA to another bacterium.