What are advantages of root meristems originating at the pericycle, rather than at other root structures (e.g., the epidermis)? Select all correct choices
A. New roots form only at the tips of preexisting
roots, reaching deep water sources.
B. New roots are directly connected to the
xylem and phloem of pre-existing roots.
C. New roots form outside of the Casparian
strip and can absorb more nutrients.
D. New roots can sprout from any location
(i.e., not just nodes) on pre-existing roots.
B,D
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Indicate whether the statement is true or false
In humans, the fluid immediately surrounding
the embryo is contained in the
a. allantois. b. placenta. c. chorion. d. amnion. e. yolk sac
Viral chromosomes exist in a variety of conformations and can be made up of ________
A) DNA only B) DNA, RNA, or protein C) protein- or lipid-coding sequences D) DNA or RNA E) RNA only
Only Photosystem I is required for (anoxygenic/cyclic/noncyclic) photophosphorylation to occur
What will be an ideal response?