Sheaths of the bacterium Sphaerotilus are tubelike structures that are in intimate contact with the chain of cells that they enclose.
Answer the following statement true (T) or false (F)
False
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In vascular plants, water transport only works if ___________. (Select all correct answer options.)
A. roots are able to generate turgor pressure B. the water column is continuous between leaves and soil C. H2O evaporates from leaves D. xylem and phloem are in close proximity
A serous membrane lines a body cavity that does not open to the outside of the body
____________________ Indicate whether the statement is true or false.
Which scientist was first credited for observing the cell nucleus?
a. Theodor Schwann b. Anton van Leeuwenhoek c. Matthias Schleiden d. Robert Brown
In order to fit within a cell, DNA becomes more compact by
A.) breaking apart into separate genes B.) extending to form very long, thin molecules C.) wrapping tightly around histones D.) being enzymatically changed into a protein