Most of the wood of a tree trunk consists of ____.
A. vascular tissue
B. collenchyma tissue
C. parenchyma tissue
D. sclerenchyma tissue
E. dermal tissue
D. sclerenchyma tissue
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The anterior pituitary secretes more ACTH, leading to more glucocorticoids in plasma, which causes the anterior
pituitary to then secrete less ACTH. This is an example of ____ regulation.
a. amplification only b. positive feedback only c. negative feedback d. cascading feedback e. both amplification and positive feedback
The group of seed plants that has the most
species is the
a. bryophytes. b. ferns. c. gymnosperms. d. monocots. e. eudicots
The process in which the cytoplasm is divided between daughter cells is known as
A) coenocytosis. B) budding. C) meiosis. D) cytokinesis. E) nuclear division.
After ONE round of DNA replication in Meselson and Stahl's classic experiment, ________
A) the conservative model was conclusively proven to be an inaccurate model B) the semiconservative model was conclusively proven to be the accurate model C) both the conservative and the semiconservative models were still possibilities D) all three models of replication were still possibilities E) the dispersive model was conclusively proven to be an inaccurate model